| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | insensitive |
| Synonyms: | accustomed, apathetic, blank, boring, callous, colorless, dead, depressed, empty, even, flat, heavy, impassible, inactive, indifferent, inert, insensible, jejune, languid, lifeless, listless, lumpy, monotonous, passionless, placid, prosaic, quiet, regular, routine, slack, slow, sluggish, spiritless, stagnant, still, stolid, torpid, unexciting, unresponsive, unsympathetic, usual, vacuous |
| Antonyms: | lively, quick, sensitive, vivacious |
| Main Entry: | dull |
| Part of Speech: | adjective |
| Definition: | uneventful |
| Synonyms: | accustomed, apathetic, blah, boring, dead, depressed, draggy, even, falling off, flat, inactive, inert, languid, lifeless, listless, monotonous, placid, quiet, regular, routine, sitting tight, slack, slothful, slow, sluggish, stagnant, still, stolid, tight, torpid, unexciting, unresponsive, usual, without incident, yawn |
| Antonyms: | active, eventful, exciting, interesting, lively |
| 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: | flat |
| Part of Speech: | adjective |
| Definition: | dull, lackluster to the senses |
| Synonyms: | banal, blah, bland, blind, boring, colorless, dead, dim, drab, draggy, flavorless, ho hum, inane, innocuous, insipid, jejune, lead balloon, lifeless, matte, monotonous, muted, pointless, prosaic, prosy, sapless, spiritless, stale, tasteless, tedious, uninteresting, unpalatable, unsavory, unseasoned, vanilla, vapid, watery, weak, whitebread |
| Antonyms: | bubbly, effervescent, sharp |
| Main Entry: | frequent |
| Part of Speech: | adjective |
| Definition: | common, repeated |
| Synonyms: | a good many, commonplace, constant, continual, customary, everyday, expected, familiar, general, habitual, incessant, intermittent, iterated, manifold, many, monotonous, numberless, numerous, periodic, perpetual, persistent, pleonastic, profuse, recurrent, recurring, redundant, reiterated, reiterative, successive, thick, ubiquitous, usual, various |
| Antonyms: | inconstant, infrequent, irregular, occasional, rare, sporadic, uncommon, unrepeated, unusual |
| Main Entry: | humdrum |
| Part of Speech: | adjective |
| Definition: | boring, uneventful |
| Synonyms: | arid, banausic, blah, bromidic, common, commonplace, dim, dime a dozen, drab, dreary, dull, everyday, garden-variety, insipid, lifeless, monotone, monotonous, mundane, ordinary, pedestrian, plodding, prosy, repetitious, routine, tedious, tiresome, toneless, treadmill, uninteresting, unvaried, vanilla, wearisome, white-bread |
| Antonyms: | busy, eventful, exciting, lively, unusual |
| 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: | 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: | mechanical |
| Part of Speech: | adjective |
| Definition: | done by machine; machinelike |
| Synonyms: | automated, automatic, cold, cursory, emotionless, fixed, habitual, impersonal, instinctive, involuntary, laborsaving, lifeless, machine-driven, matter-of-fact, monotonous, perfunctory, programmed, routine, spiritless, standardized, stereotyped, unchanging, unconscious, unfeeling, unthinking, useful |
| Antonyms: | by hand, conscious, feeling, manual |