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Uncertainty vs. Uncertainity — Which is Correct Spelling?

By Tayyaba Rehman & Fiza Rafique — Updated on March 21, 2024
The correct spelling is "Uncertainty," while "Uncertainity" is incorrect. Uncertainty refers to the state of being unsure or not definite.
Uncertainty vs. Uncertainity — Which is Correct Spelling?

Which is correct: Uncertainty or Uncertainity

How to spell Uncertainty?


Correct Spelling


Incorrect Spelling

Key Differences

Note that the incorrect version, "Uncertainity," has an extra 'i' that doesn't belong.
Think of the word "certainty" and add "un-" in front to remember "Uncertainty."
Remember that "Uncertainty" has 11 letters, while the incorrect "Uncertainity" has 12.
Mentally replace "uncertain" with "sure" in a sentence to see if it still makes sense. If it does, "uncertain" is spelled correctly.
Recall the root word "certain." The correct term, "Uncertainty," just adds the prefix "un-" and the suffix "-ty."

How Do You Spell Uncertainity Correctly?

Incorrect: Economic uncertainity can affect investment decisions.
Correct: Economic uncertainty can affect investment decisions.
Incorrect: There is a lot of uncertainity about the future of the company.
Correct: There is a lot of uncertainty about the future of the company.
Incorrect: The uncertainity of the weather made planning the picnic difficult.
Correct: The uncertainty of the weather made planning the picnic difficult.
Incorrect: The uncertainity surrounding the new law has people worried.
Correct: The uncertainty surrounding the new law has people worried.
Incorrect: Due to the uncertainity of the market, we're postponing our product launch.
Correct: Due to the uncertainty of the market, we're postponing our product launch.

Uncertainty Definitions

Uncertainty is the state of lacking sureness or definitiveness.
The uncertainty of the weather made them cancel the event.
Uncertainty refers to the quality of being open to multiple outcomes.
The uncertainty of the race kept fans on the edge of their seats.
Uncertainty denotes a lack of precise knowledge or information.
Despite the uncertainty about the market, they decided to invest.
Uncertainty is the condition of being unpredictable or unreliable.
The uncertainty of the internet connection frustrated users.
Uncertainty is a measure of the spread of possible values in statistical or scientific data.
Uncertainty in the measurements led to differing conclusions.
Uncertainty refers to epistemic situations involving imperfect or unknown information. It applies to predictions of future events, to physical measurements that are already made, or to the unknown.
The condition of being uncertain; doubt.
Something uncertain
The uncertainties of modern life.
(Statistics) The estimated amount or percentage by which an estimated or calculated value may differ from the true value.
(uncountable) Doubt; the condition of being uncertain or without conviction.
(countable) Something uncertain or ambiguous.
A parameter that measures the dispersion of a range of measured values.
The quality or state of being uncertain.
That which is uncertain; something unknown.
Our shepherd's case is every man's case that quits a moral certainty for an uncertainty.
Being unsettled or in doubt;
The uncertainty of the outcome
The state of being unsure of something

Uncertainty Meaning in a Sentence

He felt a sense of uncertainty about his decision to move abroad.
The financial market is often driven by uncertainty.
The uncertainty in her voice revealed her true feelings.
The uncertainty of the situation made everyone anxious.
The team faced uncertainty about their project's future funding.
With so much uncertainty, it's hard to make long-term plans.
Weather forecasts always come with a degree of uncertainty.
Global events have added to the uncertainty in the oil markets.
The political uncertainty has led to instability in the region.
The uncertainty principle in quantum mechanics fascinates many people.
Uncertainty about the new regulations is causing businesses to hesitate.
Regulatory uncertainty can impede the growth of new industries.
The uncertainty about the election results lasted for weeks.
Travel plans are currently affected by uncertainty due to health advisories.
The uncertainty of freelance work can be challenging for many.
The couple felt a lot of uncertainty as they awaited the test results.
Economic uncertainty often leads to fluctuating stock prices.
Technological advancements can sometimes create job market uncertainty.
Environmental uncertainty affects planning in the agricultural sector.
Scientists often have to deal with uncertainty in their research findings.
The uncertainty about future technologies makes it hard to predict market trends.
Students face uncertainty about job prospects after graduation.
Uncertainty in a relationship can lead to anxiety and conflict.
Facing uncertainty can be a significant source of stress.
Managing uncertainty is a crucial skill in business leadership.

Uncertainty Idioms & Phrases

A cloud of uncertainty

A situation where nothing is clear or sure.
A cloud of uncertainty hangs over the fate of the old theater.

To face uncertainty

To deal with a situation where outcomes are unknown.
The team is ready to face uncertainty with confidence.

To remove uncertainty

To make something clearer or more certain.
The announcement was intended to remove uncertainty about the company's future.

In a state of uncertainty

Being unsure about something or not having definite plans.
The project is currently in a state of uncertainty due to funding issues.

To add to the uncertainty

To make a situation less clear or more confusing.
The conflicting reports only add to the uncertainty about the event's cause.

Under a cloud of uncertainty

Operating or living in a situation where things are not clear.
The team worked under a cloud of uncertainty regarding their project's approval.

To live with uncertainty

To accept that not everything in life is certain or predictable.
Learning to live with uncertainty is part of growing up.

To navigate through uncertainty

To find one's way in a situation that is not clear or certain.
The company has learned to navigate through uncertainty successfully.

A period of uncertainty

A time when nothing seems definite or predictable.
The business is going through a period of uncertainty due to the economic downturn.

The fog of uncertainty

Describes a situation where things are so unclear it's like trying to see through fog.
The ongoing negotiations have left employees in the fog of uncertainty.

The only certainty is uncertainty

A phrase that acknowledges the unpredictable nature of life.
In today's fast-changing world, the only certainty is uncertainty.

To plunge into uncertainty

To suddenly become uncertain or unsure about something.
The abrupt resignation of the CEO plunged the company into uncertainty.

Amid uncertainty

Surrounded by or during a time of uncertainty.
Amid uncertainty, the community came together to support each other.

Uncertainty looms

Indicates that there is a strong possibility of uncertainty or confusion in the near future.
As the deadline approaches, uncertainty looms for the team.

To clear up uncertainty

To make a situation or information more clear and less confusing.
The meeting helped to clear up uncertainty regarding the upcoming changes.

To thrive in uncertainty

To do well or succeed in situations that are not predictable.
Entrepreneurs often thrive in uncertainty, seeing it as an opportunity.

Uncertainty prevails

When uncertainty is the dominant or prevailing condition.
Despite the discussions, uncertainty prevails about the new policy's impact.

To wade through uncertainty

To proceed or make progress despite a lack of clear information or predictability.
We're all just wading through uncertainty, trying to make the best decisions we can.

To cast uncertainty on

To make something less certain or more doubtful.
Recent findings cast uncertainty on previous theories about the dinosaur extinction.

Riddled with uncertainty

Full of uncertainty or having many uncertain aspects.
The plan is riddled with uncertainty, making it hard to endorse.

Common Curiosities

Which vowel is used before Uncertainty?

The vowel 'a' is often used before "Uncertainty," as in "an uncertainty."

Why is it called Uncertainty?

It's called "Uncertainty" because it describes a state of being unsure or lacking definitiveness.

What is the pronunciation of Uncertainty?

It's pronounced /ˌʌnˈsɜːr.tən.ti/.

Which conjunction is used with Uncertainty?

"And" is commonly used, as in "uncertainty and doubt."

What is the verb form of Uncertainty?

The verb form is "to be uncertain."

Which preposition is used with Uncertainty?

The preposition "about" is often used, as in "uncertainty about the future."

Is Uncertainty a noun or adjective?

Uncertainty is a noun.

Is Uncertainty an abstract noun?

Yes, it is an abstract noun.

Is Uncertainty a negative or positive word?

It is generally considered a neutral word, but the connotation can be negative depending on context.

What is the root word of Uncertainty?

The root word is "certain."

Is Uncertainty a countable noun?

Yes, it can be countable, as in "several uncertainties."

Is the Uncertainty term a metaphor?

It can be used metaphorically but is not inherently a metaphor.

Is the word Uncertainty imperative?

No, it is not imperative.

What is the singular form of Uncertainty?

The singular form is "Uncertainty."

What is the plural form of Uncertainty?

The plural form is "Uncertainties."

Is Uncertainty an adverb?

No, it is not an adverb.

Is Uncertainty a collective noun?

No, it is not a collective noun.

Is the word “Uncertainty” a Direct object or an Indirect object?

It can serve as either, depending on the sentence structure.

What part of speech is Uncertainty?

It is a noun.

What is another term for Uncertainty?

Another term is "ambiguity."

What is the opposite of Uncertainty?

The opposite is "certainty."

Is Uncertainty a vowel or consonant?

Uncertainty is a noun, not a vowel or a consonant.

How do we divide Uncertainty into syllables?


How is Uncertainty used in a sentence?

"The uncertainty surrounding the decision caused a lot of stress."

Which article is used with Uncertainty?

The indefinite article "an" is typically used, as in "an uncertainty."

Is the word Uncertainty a gerund?

No, it is not a gerund.

How many syllables are in Uncertainty?

There are 4 syllables.

What is the stressed syllable in Uncertainty?

The stressed syllable is "cer."

Which determiner is used with Uncertainty?

"The" or "an" can be used as determiners.

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Author Spotlight

Written by
Tayyaba Rehman
Tayyaba Rehman is a distinguished writer, currently serving as a primary contributor to As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.
Co-written by
Fiza Rafique
Fiza Rafique is a skilled content writer at, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.

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