| Main Entry: | |
| 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: | 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: | everlasting |
| Part of Speech: | adjective |
| Definition: | infinite, never-ending |
| Synonyms: | abiding, amaranthine, boundless, ceaseless, constant, continual, continuous, deathless, endless, eternal, immortal, imperishable, incessant, indestructible, interminable, lasting, limitless, perdurable, permanent, perpetual, termless, timeless, unceasing, undying, unending, uninterrupted, unremitting |
| Antonyms: | ceasing, concluding, ending, temporary, terminating, transient |
| Main Entry: | immortal |
| Part of Speech: | adjective |
| Definition: | death-defying, imperishable |
| Synonyms: | abiding, amaranthine, ceaseless, constant, deathless, endless, enduring, eternal, evergreen, everlasting, incorruptible, indestructible, indissoluble, interminable, lasting, never-ceasing, never-ending, perdurable, perennial, permanent, perpetual, phoenixlike, sempiternal, timeless, undying, unfading |
| Notes: | immortal means not subject to death, while immoral means violating principles of right and wrong or not adhering to ethical or moral principles |
| Antonyms: | destructible, ephemeral, human, mortal, perishable |
| Main Entry: | impregnable |
| Part of Speech: | adjective |
| Definition: | unyielding |
| Synonyms: | firm, fortified, impenetrable, indestructible, invincible, invulnerable, secure, solid, strong, unassailable |
| Main Entry: | incorruptible |
| Part of Speech: | adjective |
| Definition: | honest, honorable |
| Synonyms: | above suspicion, imperishable, indestructible, inextinguishable, just, loyal, moral, perpetual, persistent, pure, reliable, straight, trustworthy, unbribable, undestroyable, untouchable, upright |
| Antonyms: | bad, corruptible, dishonest |
| Main Entry: | invulnerable |
| Part of Speech: | adjective |
| Definition: | invincible |
| Synonyms: | bulletproof, impassable, impenetrable, impregnable, indestructible, powerful, secure, strong, unbeatable, untouchable |
| 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 |
| Main Entry: | unbreakable |
| Part of Speech: | adjective |
| Definition: | strong, tough |
| Synonyms: | adamantine, armored, brass-bound, durable, everlasting, firm, incorruptible, indestructible, infrangible, invulnerable, lasting, nonbreakable, perdurable, resistant, rugged, shatterproof, solid, tight, toughened, unshakable, unyielding |
| Antonyms: | breakable, delicate, fragile, weak |