adjective
1.
Synonyms: insane 1, ||batty, cracked, crazed, daft, demented, deranged, lunatic, mad, unbalanced
Antonyms: sound
2.
Synonyms: weak 1, decrepit, flimsy, fragile, frail, infirm, insubstantial, unsubstantial, ||wanky, weakly
Related Word: damaged, faulty, flawed, imperfect
Contrasted words: solid, strong, substantial
Antonyms: sound
3.
Synonyms: false 1, counterfactual, erroneous, inaccurate, incorrect, specious, untrue, wrong
Antonyms: sound
4.
Synonyms: dangerous 1, chancy, hairy, hazardous, jeopar-dous, perilous, risky, treacherous, unhealthy, wicked