adjective
uncertain, worried
Synonyms: afraid, anxious, apprehensive, choked, Delphic, diffident, hanging by thread, hesitant, jumpy, on thin ice, questioning, shaky, touch and go, touchy, troubled, unassured, unconfident, unpoised, unsure, up in the air, uptight, vague
Antonyms: certain, confident, secure, sure
adjective
dangerous, precarious
Synonyms: defenseless, exposed, fluctuant, frail, hazardous, immature, insubstantial, loose, open to attack, perilous, rickety, rocky, rootless, shaky, unguarded, unprotected, unreliable, unsafe, unshielded, unsound, unstable, unsteady, vacillating, vulnerable, wavering, weak, wobbly
Antonyms: guarded, protected, safe, secure, sound