adjective
1.
Synonyms: cautious , calculating, careful, chary, circumspect, considerate, discreet, gingerly, guarded, safe
Related Word: distrustful, doubting, leery, suspicious; vigilant, watchful
Idioms: on one's guard
Contrasted words: careless, heedless, thoughtless; devil-may-care, reckless, venturesome
Antonyms: foolhardy; unwary
2.
Synonyms: sparing , canny, chary, frugal, provident, saving, Scotch, stewardly, thrifty, unwasteful