Synonyms of the word

unchangeable

• adj. Not changeable; incapable of being changed or of changing; immutable.
• n. Something that cannot be changed.

changeless

• adj. unchanging.

confirmed

• v. simple past tense and past participle of confirm.
• adj. having a settled habit; inveterate or habitual.
• adj. verified or ratified.
• adj. (Christianity) having received the rite of confirmation.

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…

fixed

• v. simple past tense and past participle of fix.
• adj. Not changing, not able to be changed, staying the same.
• adj. Stationary.
• adj. Attached; affixed.
• adj. Chemically stable.
• adj. Supplied with what one needs.
• adj. (law) Of sound, recorded on a permanent medium.
• adj. (dialectal, informal) Surgically rendered infertile (spayed, neutered or castrated).
• adj. Rigged; fraudulently prearranged.
• adj. (of a problem) Resolved; corrected.

frozen

• adj. In the state of that which freezes; in ice form.
• adj. Immobilized.
• adj. (of a bank account) In a state such that transactions are not allowed.
• v. past participle of freeze.

lasting

• adj. Persisting for an extended period of time.
• v. present participle of last.
• n. continuance; endurance.
• n. A durable woollen material formerly used for women's shoes; everlasting.
• n. The act or process of shaping on a last.

permanent

• adj. Without end, eternal.
• adj. Lasting for an indefinitely long time.
• n. A chemical hair treatment imparting or removing curliness, whose effects typically last for a period of…
• v. (transitive, dated) To perm (the hair).

stable

• n. A building, wing or dependency set apart and adapted for lodging and feeding (and training) animals with…
• n. (metonymically) All the racehorses of a particular stable, i.e. belonging to a given owner.
• n. (Scotland) A set of advocates; a barristers' chambers.
• n. An organization of sumo wrestlers who live and train together.
• v. (transitive) to put or keep (horse) in a stable.
• v. (rail transport, transitive) to park (a rail vehicle).
• adj. Relatively unchanging, permanent; firmly fixed or established; consistent; not easily moved, altered,…
• adj. (computing) Of software: established to be relatively free of bugs, as opposed to a beta version.
• adj. (computer science, of a sorting algorithm) That maintains the relative order of items that compare as…

static

• adj. Unchanging; that cannot or does not change.
• adj. Immobile; fixed in place; having no motion.
• adj. (programming) Occupying fixed memory, allocated when a program is loaded.
• n. (uncountable) Interference on a broadcast signal caused by atmospheric disturbances; heard as crackles…
• n. (by extension, uncountable) Interference or obstruction from people.
• n. (uncountable) Something that is not part of any perceived universe phenomena; having no motion; no particle;…
• n. (uncountable) Static electricity.
• n. (countable, programming) A static variable.

unalterable

• adj. incapable of changing or being altered.
• adj. irrevocable or irreversible.

unchanging

• adj. remaining constantly unchanged.
• v. present participle of unchange.