flimsy

I

(New American Roget's College Thesaurus)

adj. sleazy, gossamer, fragile; tenuous, unsubstantial; feeble, weak. See weakness.

II

(Roget's IV) modif.

1. [ Said of physical things ]

Syn. slight, frail, weak, gauzy, sleazy, sheer, shoddy, unsubstantial, defective, shaky, wobbly, rickety, fragile, wispy, makeshift, decrepit, infirm; see also poor 2 .

Ant. sturdy, heavy, strong.

2. [ Said of arguments, reasons, and the like ]

Syn. feeble, weak, inadequate, unconvincing, lame, trifling, inept, superficial, inane, implausible, ill-conceived, puerile, fallacious, false, assailable, controvertible, contemptible, wishful; see also sense 1, illogical .

Ant. cogent, logical*, unanswerable.

III

(Roget's 3 Superthesaurus) a.

1. fragile frail, easily broken, thin, delicate, slight, shoddy, unsubstantial, ethereal, diaphanous, gossamer, rickety, cheap.

2. inadequate ineffectual, feeble, weak, lame, shallow, unconvincing, trivial, poor, incredible, implausable.

ANT.: 1. solid, strong, *like the Rock of Gibraltar. 2. credible, solid, convincing, plausible

IV

(Roget's Thesaurus II) adjective 1. Not physically strong: decrepit, delicate, feeble, fragile, frail, infirm, insubstantial, puny, unsound, unsubstantial, weak, weakly. See STRONG. 2. Having little substance or significance; not solidly based: feeble, insubstantial, tenuous, unsubstantial. See STRONG. 3. Not plausible or believable: implausible, improbable, inconceivable, incredible, shaky, thin, unbelievable, unconceivable, unconvincing, unsubstantial, weak. See LIKELY.