Certain vs. Uncertain

Certainadjective

Sure, positive, not doubting.

‘I was certain of my decision.’;

Uncertainadjective

Not certain; unsure.

Certainadjective

(obsolete) Determined; resolved.

Uncertainadjective

Not known for certain; questionable.

‘Tomorrow's weather is uncertain.’;

Certainadjective

Not to be doubted or denied; established as a fact.

Uncertainadjective

Not yet determined; undecided.

Certainadjective

Actually existing; sure to happen; inevitable.

‘Bankruptcy is the certain outcome of your constant gambling and lending.’;

Uncertainadjective

Variable and subject to change.

Certainadjective

Unfailing; infallible.

Uncertainadjective

Fitful or unsteady.

Certainadjective

Fixed or stated; regular; determinate.

Uncertainadjective

Unpredictable or capricious.

Certainadjective

Not specifically named; indeterminate; indefinite; one or some; sometimes used independently as a noun, and meaning certain persons; see also "one".

Uncertainnoun

(with "the") Something uncertain.

Certaindeterminer

Having been determined but not specified. The quality of some particular subject or object which is known by the speaker to have been specifically singled out among similar entities of its class.

‘Certain people are good at running.’;

Uncertainadjective

Not certain; not having certain knowledge; not assured in mind; distrustful.

‘Man, without the protection of a superior Being, . . . is uncertain of everything that he hopes for.’;

Certainpronoun

(with of) Unnamed or undescribed members (of).

‘There were serious objections to certain of the proposals.’;

Uncertainadjective

Irresolute; inconsonant; variable; untrustworthy; as, an uncertain person; an uncertain breeze.

‘O woman! in our hours of ease,Uncertain, coy, and hard to please!’;

Certainnoun

(with "the") Something certain.

Uncertainadjective

Questionable; equivocal; indefinite; problematical.

‘From certain dangers to uncertain praise.’;

Certainadjective

Assured in mind; having no doubts; free from suspicions concerning.

‘To make her certain of the sad event.’; ‘I myself am certain of you.’;

Uncertainadjective

Not sure; liable to fall or err; fallible.

‘Soon bent his bow, uncertain in his aim.’; ‘Whistling slings dismissed the uncertain stone.’;

Certainadjective

Determined; resolved; - used with an infinitive.

‘However, I with thee have fixed my lot,Certain to undergo like doom.’;

Uncertainverb

To make uncertain.

Certainadjective

Not to be doubted or denied; established as a fact.

‘The dream is certain, and the interpretation thereof sure.’;

Uncertainadjective

lacking or indicating lack of confidence or assurance;

‘uncertain of his convictions’; ‘unsure of himself and his future’; ‘moving with uncertain (or unsure) steps’; ‘an uncertain smile’; ‘touched the ornaments with uncertain fingers’;

Certainadjective

Actually existing; sure to happen; inevitable.

‘Virtue that directs our waysThrough certain dangers to uncertain praise.’; ‘Death, as the Psalmist saith, is certain to all.’;

Uncertainadjective

not established beyond doubt; still undecided or unknown;

‘an uncertain future’; ‘a manuscript of uncertain origin’; ‘plans are still uncertain’; ‘changes of great if uncertain consquences’; ‘without further evidence his story must remain uncertain’;

Certainadjective

Unfailing; infallible.

‘I have often wished that I knew as certain a remedy for any other distemper.’;

Uncertainadjective

not established or confirmed;

‘his doom is as yet unsealed’;

Certainadjective

Fixed or stated; regular; determinate.

‘The people go out and gather a certain rate every day.’;

Uncertainadjective

not firm or secure;

‘balancing three boxes in an uncertain pile’;

Certainadjective

Not specifically named; indeterminate; indefinite; one or some; - sometimes used independenty as a noun, and meaning certain persons.

‘It came to pass when he was in a certain city.’; ‘About everything he wrote there was a certain natural grace und decorum.’;

Uncertainadjective

not certain to occur; not inevitable;

‘everything is uncertain about the army’; ‘the issue is uncertain’;

Certainnoun

Certainty.

Uncertainadjective

subject to change;

‘a changeable climate’; ‘the weather is uncertain’; ‘unsettled weather with rain and hail and sunshine coming one right after the other’;

Certainnoun

A certain number or quantity.

Uncertainadjective

not safe from danger or mishap;

‘faced an uncertain future’; ‘an unsure existence’;

Certainadverb

Certainly.

Uncertainadjective

not consistent or dependable;

‘an uncertain recollection of events’; ‘a gun with a rather uncertain trigger’;

Certainadjective

definite but not specified or identified;

‘set aside a certain sum each week’; ‘to a certain degree’; ‘certain breeds do not make good pets’; ‘certain members have not paid their dues’; ‘a certain popular teacher’; ‘a certain Mrs. Jones’;

Uncertainadjective

ambiguous (especially in the negative);

‘she spoke in no uncertain terms’;

Certainadjective

having or feeling no doubt or uncertainty; confident and assured;

‘felt certain of success’; ‘was sure (or certain) she had seen it’; ‘was very sure in his beliefs’; ‘sure of her friends’;

Certainadjective

established beyond doubt or question; definitely known;

‘what is certain is that every effect must have a cause’; ‘it is certain that they were on the bus’; ‘his fate is certain’; ‘the date for the invasion is certain’;

Certainadjective

certain to occur; destined or inevitable;

‘he was certain to fail’; ‘his fate is certain’; ‘In this life nothing is certain but death and taxes’; ‘he faced certain death’; ‘sudden but sure regret’; ‘he is sure to win’;

Certainadjective

established irrevocably;

‘his fate is sealed’;

Certainadjective

capable of being depended on;

‘a quick and certain remedy’; ‘a sure way to distinguish the two’; ‘wood dust is a sure sign of termites’;

Certainadjective

exercising or taking care great enough to bring assurance;

‘be certain to disconnect the iron when you are through’; ‘be sure to lock the doors’;