| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | suspicious |
| Synonyms: | attentive, cagey, calculating, canny, careful, cautious, chary, circumspect, discreet, gingerly, leery, noncommittal, on the lookout, overcareful, overcautious, prudent, reserved, restrained, reticent, safe, vigilant, wary, watchful, with eyes peeled |
| Antonyms: | careless, incautious, unguarded, unsuspicious, unwatchful |
| Main Entry: | vigilant |
| Part of Speech: | adjective |
| Definition: | careful, watchful |
| Synonyms: | acute, agog, alert, anxious, attentive, aware, cautious, circumspect, guarded, keen, looking for, looking to, observant, on alert, on guard, on the ball, on the job, on the lookout, on the qui vive, on toes, open-eyed, sharp, sleepless, unsleeping, waiting on, wakeful, wary, wide-awake, with eyes peeled, with weather eye open |
| Antonyms: | careless, impulsive, inattentive, indiscreet, negligent |
| Main Entry: | watchful |
| Part of Speech: | adjective |
| Definition: | on the lookout |
| Synonyms: | alert, all ears, attentive, careful, cautious, chary, circumspect, glued, guarded, heedful, hooked, keen, not missing a trick, observant, on guard, on one's toes, on the ball, on the job, on the qui vive, on the watch, open-eyed, prepared, ready, see after, see to, suspicious, unsleeping, vigilant, wakeful, wary, wide-awake, with eyes peeled |
| Antonyms: | inattentive, negligent |
| Main Entry: | cautious |
| Part of Speech: | adjective |
| Definition: | careful, guarded |
| Synonyms: | alert, all ears, cagey, calculating, chary, circumspect, considerate, discreet, forethoughtful, gingerly, hedging one's bets, heedful, judicious, keeping on one's toes, leery, on the lookout, playing it cool, playing safe, politic, provident, prudent, pussyfoot, safe, shrewd, taking it easy, taking it slow, tentative, thinking twice, vigilant, walking on eggs, wary, watchful, watching one's step, watching out, with one's eyes peeled |
| Antonyms: | careless, hasty, heedless, imprudent, incautious, rash, thoughtless, uncareful, unguarded, unobservant |