INALTERABLE

unalterable, inalterable

(adjective) not capable of being changed or altered; “unalterable resolve”; “an unalterable ground rule”

Source: WordNet® 3.1

Etymology

Adjective

inalterable (comparative more inalterable, superlative most inalterable)

That cannot be altered.

Synonyms

• unalterable

• unchangeable

Antonyms

• alterable

Source: Wiktionary

In*al"ter*a*ble, a. Etym: [Pref. in- not + alterable: cf. F. inaltérable.]

Definition: Not alterable; incapable of being altered or changed; unalterable.

– In*al"ter*a*ble*ness, n.

– In*al"ter*a*bly, adv.

Source: Webster’s Unabridged Dictionary 1913 Edition