Inalterable definitions

Webster's 1828 Dictionary

INAL'TERABLE, a. [in and alterable.] That cannot or may not be altered or changed; unalterable.

WordNet (r) 3.0 (2005)

adj
1: not capable of being changed or altered; "unalterable resolve"; "an unalterable ground rule" [syn: unalterable, inalterable] [ant: alterable]

Merriam Webster's

adjective Date: 1541 not alterable ; unalterable • inalterability noun • inalterableness noun • inalterably adverb

Oxford Reference Dictionary

adj. not alterable; that cannot be changed. Derivatives: inalterability n. inalterably adv. Etymology: med.L inalterabilis (as IN-(1), alterabilis alterable)

Webster's 1913 Dictionary

Inalterable In*al"ter*a*ble, a. [Pref. in- not + alterable: cf. F. inalt['e]rable.] Not alterable; incapable of being altered or changed; unalterable. -- In*al"ter*a*ble*ness, n. -- In*al"ter*a*bly, adv.

Moby Thesaurus

assiduous, constant, continuing, diligent, dogged, enduring, faithful, fixed, immovable, immutable, indefatigable, indomitable, industrious, insistent, invariable, invincible, lasting, loyal, never-tiring, obstinate, patient, patient as Job, permanent, perseverant, persevering, persistent, persisting, pertinacious, plodding, plugging, preoccupied, rapt, relentless, resolute, sedulous, single-minded, sleepless, slogging, stable, steadfast, steady, stubborn, tenacious, tireless, unabating, unalterable, unchangeable, unconquerable, undaunted, undiscouraged, undrooping, unfailing, unfaltering, unflagging, unflinching, unintermitting, uninterrupted, unmodifiable, unmovable, unnodding, unrelaxing, unrelenting, unremitting, unsleeping, unswerving, untiring, unwavering, unwearied, unwearying, unwinking, utterly attentive, weariless