adjective
1.
Synonyms: weak 1, decrepit, feeble, flimsy, fragile, infirm, insubstantial, unsound, unsubstantial, weakly
Related Word: slender, slight, slim, tenuous, thin; petty, puny
Contrasted words: hale, healthy, sound
Antonyms: robust
2.
Synonyms: fragile 1, breakable, delicate, fracturable, frangible, shatterable, shattery
Contrasted words: solid, substantial