immutable

Main Entry:
immutable [ih-myoo-tuh-buhl]
Part of Speech: adjective
Definition: unchangeable
Synonyms: abiding, ageless, changeless, constant, enduring, fixed, immovable, inflexible, invariable, permanent, perpetual, sacrosanct, stable, steadfast, unalterable, unmodifiable
Antonyms: alterable, changeable, flexible, mutable, variable
Main Entry: constant
Part of Speech: adjective
Definition: fixed
Synonyms: connected, consistent, continual, equable, even, firm, habitual, homogeneous, immutable, invariable, like the Rock of Gibralter, monochrome, monophonic, monotonous, nonstop, of a piece, permanent, perpetual, regular, regularized, solid as rock, stabile, stable, standardized, steadfast, steady, together, unalterable, unbroken, unchanging, unflappable, unfluctuating, uniform, uninterrupted, unvarying
Antonyms: changeable, fickle, fluctuating, inconstant, irregular, unstable, unsteady, varying, wavering
Main Entry: eternal
Part of Speech: adjective
Definition: without pause; endless
Synonyms: abiding, ageless, always, amaranthine, boundless, ceaseless, constant, continual, continued, continuous, dateless, deathless, enduring, everlasting, forever, illimitable, immemorial, immortal, immutable, imperishable, incessant, indefinite, indestructible, infinite, interminable, lasting, never-ending, perdurable, perennial, permanent, perpetual, persistent, relentless, termless, timeless, unbroken, unceasing, undying, unending, unfading, uninterrupted, unremitting, without end
Antonyms: brief, changeable, changing, ending, ephemeral, stopping, temporary, terminable, transient
Main Entry: immovable
Part of Speech: adjective
Definition: fixed, stubborn
Synonyms: adamant, constant, dead set on, dug in, fast, firm, hard-nosed, immobile, immotile, immutable, impassive, inflexible, intransigent, locked in, motionless, obdurate, quiescent, resolute, rooted, secure, set, set in concrete, set in stone, solid, stable, stand pat, stationary, steadfast, stick to guns, stuck, tough nut, unalterable, unchangeable, uncompromising, unmodifiable, unshakable, unwavering, unyielding
Antonyms: mobile, movable, moving, unfixed
Main Entry: indestructible
Part of Speech: adjective
Definition: lasting, unable to be destroyed
Synonyms: abiding, deathless, durable, enduring, everlasting, immortal, immutable, imperishable, incorruptible, indelible, indissoluble, inexterminable, inextinguishable, inextirpable, irrefragable, irrefrangible, nonperishable, permanent, perpetual, unalterable, unbreakable, unchangeable, undestroyable, undying, unfading
Antonyms: breakable, destructible, perishable
Main Entry: inflexible
Part of Speech: adjective
Definition: stubborn
Synonyms: adamant, adamantine, determined, dogged, dyed-in-the-wool, firm, fixed, hard, hard-and-fast, immovable, immutable, implacable, indomitable, inexorable, intractable, iron, obdurate, obstinate, relentless, resolute, rigid, rigorous, set, set in one's ways, single-minded, stand one's ground, staunch, steadfast, steely, stiff, strict, stringent, unadaptable, unbending, unchangeable, uncompliant, uncompromising, unrelenting, unswayable, unyielding
Antonyms: flexible, reasonable, willing, yielding
Main Entry: invariable
Part of Speech: adjective
Definition: not changing
Synonyms: changeless, consistent, constant, fixed, immovable, immutable, inalterable, inflexible, monotonous, perpetual, regular, rigid, same, set, static, unalterable, unchangeable, unchanging, undiversified, unfailing, uniform, unmodifiable, unrelieved, unvarying, unwavering
Antonyms: changeable, changing, variable, varying
Main Entry: irrevocable
Part of Speech: adjective
Definition: fixed, unchangeable
Synonyms: certain, changeless, constant, doomed, established, fated, final, immutable, indelible, inevitable, invariable, irremediable, irretrievable, irreversible, lost, permanent, predestined, predetermined, settled, unalterable, unrepealable, unreversible
Antonyms: alterable, changeable, reversible, revocable
Main Entry: permanent
Part of Speech: adjective
Definition: constant, lasting
Synonyms: abiding, changeless, continual, diurnal, durable, enduring, everlasting, fixed, for keeps, forever, forever and a day, immutable, imperishable, in for the long haul, indestructible, invariable, long-lasting, perdurable, perduring, perennial, perpetual, persistent, set, set in concrete, set in stone, stable, steadfast, unchanging, unfading
Antonyms: ephemeral, temporary
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