| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | ageless |
| Synonyms: | endless, eternal, everlasting, immortal, permanent, timeless |
| 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: | timeless |
| Part of Speech: | adjective |
| Definition: | eternal |
| Synonyms: | abiding, ageless, always, amaranthine, constant, continual, continued, dateless, deathless, endless, enduring, everlasting, forever, illimitable, immemorial, immortal, indefinite, infinite, lasting, never-ending, perennial, permanent, perpetual, persistent, undying, unending, without end |
| Main Entry: | ageless |
| Part of Speech: | adjective |
| Definition: | enduring |
| Synonyms: | dateless, eternal, timeless |
| Main Entry: | round-the-clock |
| Part of Speech: | adjective |
| Definition: | continual |
| Synonyms: | aeonian, around-the-clock, ceaseless, connected, consecutive, constant, continuous, dateless, endless, enduring, eternal, everlasting, frequent, incessant, interminable, nonstop, oft-repeated, ongoing, permanent, perpetual, persistent, persisting, recurrent, regular, relentless, repeated, repetitive, running, staying, steady, timeless, unbroken, unceasing, unchanging, unending, unfailing, unflagging, uninterrupted, unremitting, unvarying, unwaning |
| Main Entry: | sempiternal |
| Part of Speech: | adjective |
| Definition: | eternal |
| 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 |
| Main Entry: | unremitting |
| Part of Speech: | adjective |
| Definition: | continual |
| Synonyms: | aeonian, around-the-clock, ceaseless, connected, consecutive, constant, continuous, dateless, endless, enduring, eternal, everlasting, frequent, incessant, interminable, nonstop, oft-repeated, ongoing, permanent, perpetual, persistent, persisting, recurrent, regular, relentless, repeated, repetitive, round-the-clock, running, staying, steady, timeless, unbroken, unceasing, unchanging, unending, unfailing, unflagging, uninterrupted, unvarying, unwaning |