| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | not likely |
| Synonyms: | doubtful, dubious, fanciful, far-fetched, flimsy*, hundred-to-one, iffy, implausible, inconceivable, not expected, outside chance, questionable, rare, slim, slim and none, unbelievable, uncertain, unconvincing, unheard of, unimaginable, unlikely, unsubstantial, weak |
| Antonyms: | believable, likely, ostensible, plausible, possible, probable, tenable |
| Main Entry: | infirm |
| Part of Speech: | adjective |
| Definition: | sick, weak |
| Synonyms: | ailing, anemic, anile, debilitated, decrepit, delicate, enfeebled, failing, faint, faltering, feeble, flimsy, fragile, frail, halting, ill, insecure, irresolute, laid low, lame, sensile, shaky, unsound, unstable, unsubstantial, vacillating, wavering, wobbly |
| Antonyms: | firm, healthy, hearty, robust, sound, strong |
| Main Entry: | insubstantial |
| Part of Speech: | adjective |
| Definition: | weak, imaginary |
| Synonyms: | aerial, airy, chimerical, decrepit, ephemeral, false, fanciful, feeble, flimsy, fly-by-night, fragile, frail, idle, illusory, immaterial, imponderable, incorporeal, infirm, intangible, metaphysical, petty, poor, puny, slender, slight, tenuous, thin, too little too late, unreal, unsound, unsubstantial |
| Antonyms: | real, strong, substantial |
| Main Entry: | lame |
| Part of Speech: | adjective |
| Definition: | feeble, weak |
| Synonyms: | faltering, faulty, flabby, flimsy, inadequate, ineffective, inefficient, insufficient, poor, thin, unconvincing, unpersuasive, unpleasing, unsatisfactory, unsuitable |
| Antonyms: | able, capable, efficient, satisfactory, strong |
| Main Entry: | light |
| Part of Speech: | adjective |
| Definition: | not heavy |
| Synonyms: | agile, airy, atmospheric, buoyant, crumbly, dainty, delicate, downy, easy, effervescent, ethereal, featherweight, feathery, filmy, flimsy, floatable, floating, fluffy, friable, frothy, gossamery, graceful, imponderous, inconsequential, insubstantial, light-footed, lightweight, lithe, little, loose, meager, nimble, petty, porous, portable, sandy, sheer, slender, slight, small, spongy, sprightly, sylphlike, thin, tissuelike, trifling, trivial, unheavy, unsubstantial, weightless |
| Antonyms: | heavy, weighted |
| Main Entry: | limp |
| Part of Speech: | adjective |
| Definition: | not stiff; weak |
| Synonyms: | bending, debilitated, drooping, droopy, ductile, enervated, exhausted, feeble, flabby, flaccid, flexible, flexuous, flimsy, floppy, impressible, infirm, languid, languishing, lax, lethargic, limber, listless, loose, plastic, pliable, pliant, relaxed, slack, soft, spent, spiritless, supple, tired, unsubstantial, weakened, wearied, worn out, yielding |
| Antonyms: | hard, inflexible, rigid, stiff, straight, strong, unbending |
| Main Entry: | meager |
| Part of Speech: | adjective |
| Definition: | small, inadequate; poor |
| Synonyms: | bare, barren, deficient, exiguous, flimsy, inappreciable, inconsiderable, infertile, insubstantial, insufficient, little, mere, minimum, miserable, paltry, puny, scant, scanty, scrimp, scrimpy, shabby, short, skimp, skimpy, slender, slight, spare, sparse, subtle, tenuous, too little too late, unfinished, unfruitful, unproductive, wanting, weak |
| Antonyms: | adequate, large, liberal, plenty, substantial, sufficient |
| Main Entry: | nonexistent |
| Part of Speech: | adjective |
| Definition: | fictional, not real |
| Synonyms: | absent, airy, baseless, blank, chimerical, dead, defunct, departed, dreamlike, dreamy, empty, ethereal, extinct, extinguished, fancied, few and far between, flimsy, gone, gossamery, groundless, hallucinatory, hypothetical, illusory, imaginary, imagined, immaterial, imponderable, insubstantial, legendary, lost, missing, mythical, negative, null, null and void, passed away, passed on, perished, shadowy, tenuous, ungrounded, unreal, unsubstantial, vacant, vague, vaporous, void, without foundation |
| Antonyms: | actual, existent, existing, real, true |
| Main Entry: | piddly |
| Part of Speech: | adjective |
| Definition: | meager, trivial |
| Synonyms: | barren, deficient, diddly, flimsy, inconsiderable, insubstantial, insufficient, little, measly, mere, microscopic, minute, negligible, paltry, petty, puny, rinky-dink, scant, scrimpy, short, skimpy, slight, small, sparse, superficial, too little too late, two-bit, unproductive, worthless |