Synonyms of the word

invariant

• adj. not varying; constant.
• adj. (mathematics) Unaffected by a specified operation (especially by a transformation).
• adj. (computing, programming) Neither covariant nor contravariant.
• n. An invariant quantity, function etc.

changeless

• adj. unchanging.

characteristic

• adj. Being a distinguishing feature of a person or thing.
• n. a distinguishing feature of a person or thing.
• n. (mathematics) the integer part of a logarithm.
• n. (nautical) the distinguishing features of a navigational light on a lighthouse etc by which it can be…
• n. (algebra, field theory) The minimum number of times that the unit of a field must be added unto itself…

constant

• adj. Unchanged through time or space; permanent.
• adj. Consistently recurring over time; persistent.
• adj. Steady in purpose, action, feeling, etc.
• adj. Firm; solid; not fluid.
• adj. (obsolete) Consistent; logical.
• n. That which is permanent or invariable.
• n. (algebra) A quantity that remains at a fixed value throughout a given discussion.
• n. (sciences) Any property of an experiment, determined numerically, that does not change under given circumstances.
• n. (computing) An identifier that is bound to an invariant value; a fixed value given a name to aid in readability…

feature

• n. (obsolete) One's structure or make-up: form, shape, bodily proportions.
• n. An important or main item.
• n. (media) A long, prominent article or item in the media, or the department that creates them; frequently…
• n. Any of the physical constituents of the face (eyes, nose, etc.).
• n. (computing) A beneficial capability of a piece of software.
• n. The cast or structure of anything, or of any part of a thing, as of a landscape, a picture, a treaty,…
• n. (archaeology) Something discerned from physical evidence that helps define, identify, characterize, and…
• n. (engineering) Characteristic forms or shapes of parts. For example, a hole, boss, slot, cut, chamfer,…
• v. (transitive) To ascribe the greatest importance to something within a certain context.
• v. (transitive) To star, to contain.
• v. (intransitive) To appear, to make an appearance.

invariable

• adj. Not variable; unalterable; uniform; always having the same value.
• adj. (mathematics) Constant.
• adj. (by extension, grammar, of a word, or a grammatical class) That cannot undergo inflection, conjugation…
• n. Something that does not vary; a constant.

unvarying

• adj. persistent, constant or changeless.
• adj. lacking variety; having a uniform character.