Constant vs. Persistent — What's the Difference?

Not changing or varying; continuous

Refusing to give up or let go; persevering obstinately.

Happening regularly or repeatedly; continual

Insistently repetitive or continuous

Unchanging in nature, value, or extent; invariable

Existing or remaining in the same state for an indefinitely long time; enduring

Steadfast in purpose, loyalty, or affection; faithful

(Botany) Lasting past maturity without falling off, as the calyx on an eggplant or the scales of a pine cone.

Something that is unchanging or invariable.

(Zoology) Retained permanently, rather than disappearing in an early stage of development

A quantity assumed to have a fixed value in a specified mathematical context.

Obstinately refusing to give up or let go.

An experimental or theoretical condition, factor, or quantity that does not vary or that is regarded as invariant in specified circumstances.

Insistently repetitive.

Unchanged through time or space; permanent.

Indefinitely continuous.

Consistently recurring over time; persistent.

(botany) Lasting past maturity without falling off.

Steady in purpose, action, feeling, etc.

(computing) Of data or a data structure: not transient or temporary, but remaining in existence after the termination of the program that creates it.

Firm; solid; not fluid.

(mathematics) Describing a fractal process that has a positive Brown function

(obsolete) Consistent; logical.

Non-transient.

Bounded above by a constant.

Inclined to persist; having staying qualities; tenacious of position or purpose.

That which is permanent or invariable.

Remaining beyond the period when parts of the same kind sometimes fall off or are absorbed; permanent; as, persistent teeth or gills; a persistent calyx; - opposed to deciduous, and caducous.

(algebra) A quantity that remains at a fixed value throughout a given discussion.

Never-ceasing;

(science) Any property of an experiment, determined numerically, that does not change under given circumstances.

Continually recurring to the mind;

(computing) An identifier that is bound to an invariant value; a fixed value given a name to aid in readability of source code.

Retained; not shed;

Firm; solid; fixed; immovable; - opposed to fluid.

Not liable, or given, to change; permanent; regular; continuous; continually recurring; steadfast; faithful; not fickle. Opposite of changeable and variable.

Remaining unchanged or invariable, as a quantity, force, law, etc.

Consistent; logical.

That which is not subject to change; that which is invariable.

A quantity that does not change its value; - used in countradistinction to variable.

A number whose value, when ascertained (as by observation) and substituted in a general mathematical formula expressing an astronomical law, completely determines that law and enables predictions to be made of its effect in particular cases.

A number expressing some property or condition of a substance or of an instrument of precision; as, the dielectric constant of quartz; the collimation constant of a transit instrument.

A data structure that does not change during the course of execution of a program. It may be a number, a string, or a more complex data structure; - contrasted with variable.

A quantity that does not vary

A number representing a quantity assumed to have a fixed value in a specified mathematical context;

Persistent in occurrence and unvarying in nature;

Continually recurring or continuing without interruption;

Steadfast in purpose or devotion or affection;

Uninterrupted in time and indefinitely long continuing;