| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | not strong; light, thin |
| Synonyms: | chiffon, cut-rate, decrepit, defective, delicate, diaphanous, feeble, fragile, frail, gauzy, gossamer, house of cards, inadequate, infirm, insubstantial, meager, papery, rickety, rinkydink, shaky, shallow, sheer, slapdash, sleazy, slight, superficial, tacky, transparent, unsound, unsubstantial, weak, wobbly |
| Antonyms: | firm, heavy, solid, strong, sturdy, substantial, thick, tough |
| Main Entry: | green around the gills |
| Part of Speech: | adjective |
| Definition: | sick |
| Synonyms: | blah, crummy, miserable, nauseated, pale, queasy, shaky, sick as a dog, sick to one's stomach, throwing up, under the weather, vomiting |
| Main Entry: | groggy |
| Part of Speech: | adjective |
| Definition: | dizzy, stunned |
| Synonyms: | befuddled, confused, dazed, dopey, drunken, faint, hazy, out of it, punch-drunk, punchy, reeling, shaky, slaphappy, staggering, stupefied, swaying, tired, unsteady, weak, whirling, wobbly, woozy |
| Antonyms: | clear, clear-headed, cognizant |
| 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: | insecure |
| Part of Speech: | adjective |
| Definition: | uncertain, worried |
| Synonyms: | Delphic, afraid, anxious, apprehensive, choked, diffident, hanging by thread, hesitant, jumpy, on thin ice, questioning, shaky, touch and go, touchy*, troubled, unassured, unconfident, unpoised, unsure, up in the air, uptight*, vague |
| Antonyms: | certain, confident, secure, sure |
| Main Entry: | insecure |
| Part of Speech: | adjective |
| Definition: | dangerous, precarious |
| Synonyms: | defenseless, exposed, fluctuant, frail, hazardous, immature, insubstantial, loose, open to attack, perilous, rickety, rocky, rootless, shaky, unguarded, unprotected, unreliable, unsafe, unshielded, unsound, unstable, unsteady, vacillating, vulnerable, wavering, weak, wobbly |
| Antonyms: | guarded, protected, safe, secure, sound |
| Main Entry: | irregular |
| Part of Speech: | adjective |
| Definition: | random, variable |
| Synonyms: | aberrant, aimless, capricious, casual, changeable, designless, desultory, disconnected, discontinuous, eccentric, erratic, faltering, fitful, fluctuating, fragmentary, haphazard, hit-or-miss, inconstant, indiscriminate, infrequent, intermittent, jerky, nonuniform, occasional, out of order, patchy, purposeless, recurrent, shaky, shifting, spasmodic, sporadic, uncertain, unconsidered, uneven, unmethodical, unpunctual, unreliable, unsettled, unsteady, unsystematic, up and down, weaving |
| Antonyms: | conventional, methodical, regular, systematic |
| Main Entry: | irresolute |
| Part of Speech: | adjective |
| Definition: | indecisive |
| Synonyms: | changing, doubtful, doubting, faltering, fearful, fickle, fluctuating, halfhearted, halting, hesitant, hesitating, hot-and-cold, infirm, on-the-fence, shaky, tentative, timid, uncertain, undecided, undetermined, unsettled, unstable, unsteady, vacillating, waffling, wavering, weak, weak-kneed, wimpy, wishy-washy, wobbly |
| Antonyms: | definite, determined, obstinate, resolute, stubborn, unyielding, willful |
| Main Entry: | jerky |
| Part of Speech: | adjective |
| Definition: | uncontrolled |
| Synonyms: | bouncy, bumpy, convulsive, fitful, jarring, jolting, lurching, paroxysmal, rough, shaking, shaky, spasmodic, tremulous, twitching, twitchy, uncontrollable |
| Antonyms: | fluid, smooth |