| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | never-ending |
| Synonyms: | amaranthine, constant, continual, continuous, day and night, endless, eternal, everlasting, incessant, indefatigable, interminable, nonstop, on a treadmill, perennial, perpetual, round the clock, unceasing, unending, uninterrupted, unremitting, untiring, world-without-end |
| Antonyms: | ceasing, completed, concluded, ending, finished, infrequent, irregular, occasional |
| Main Entry: | constant |
| Part of Speech: | adjective |
| Definition: | neverending |
| Synonyms: | abiding, ceaseless, chronic, continual, continuous, endless, enduring, eternal, everlasting, incessant, interminable, lasting, nonstop, perpetual, persistent, persisting, relentless, sustained, unending, uninterrupted, unrelenting, unremitting |
| Antonyms: | concluding, ending, interrupted, stopping, terminable, terminating |
| Main Entry: | continual |
| Part of Speech: | adjective |
| Definition: | constant, incessant |
| Synonyms: | aeonian, around-the-clock, ceaseless, connected, consecutive, continuous, dateless, endless, enduring, eternal, everlasting, frequent, interminable, oft-repeated, permanent, perpetual, persistent, persisting, recurrent, regular, relentless, repeated, repetitive, running, staying, steady, timeless, unbroken, unceasing, unchanging, unending, unfailing, unflagging, uninterrupted, unremitting, unvarying, unwaning |
| Notes: | continually means 'repeatedly, with breaks in between' and continuously means 'without interruption, in an unbroken stream'; continual typically refers to time while continuous can refer to space as well as time |
| Antonyms: | broken, ceasing, checked, halting, inconstant, infrequent, intermittent, interrupted, occasional, temporary |
| Main Entry: | endless |
| Part of Speech: | adjective |
| Definition: | not stopping, not finishing |
| Synonyms: | amaranthine, boundless, ceaseless, constant, continual, continuous, countless, deathless, enduring, eternal, everlasting, illimitable, immeasurable, immortal, incalculable, incessant, indeterminate, infinite, interminable, limitless, measureless, monotonous, multitudinous, never-ending, no end of, no end to, numberless, overlong, perpetual, self-perpetuating, unbounded, unbroken, undivided, undying, unending, unfathomable, uninterrupted, unlimited, unsurpassable, untold, without end |
| Antonyms: | bounded, completing, ending, finishing, limited, passing, stopping, terminable |
| 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: | incessant |
| Part of Speech: | adjective |
| Definition: | never-ending, persistent |
| Synonyms: | ceaseless, constant, continual, continuous, day-and-night, endless, eternal, everlasting, interminable, interminate, monotonous, nonstop, perpetual, relentless, round-the-clock, timeless, unbroken, unceasing, unending, unrelenting, unremitting |
| Antonyms: | broken, ceasing, ending, intermittent, interrupted |
| Main Entry: | interminable |
| Part of Speech: | adjective |
| Definition: | infinite |
| Synonyms: | boring, boundless, ceaseless, constant, continuous, day-and-night, dragged out, dull, endless, eternal, everlasting, immeasurable, incessant, interminate, limitless, long, long-drawn-out, long-winded, looped, never-ending, no end of, no end to, on a treadmill, permanent, perpetual, protracted, spun out, strung out, timeless, unbound, unceasing, uninterrupted, unlimited, wearisome |
| Antonyms: | bounded, ending, finite, terminable |