Synonyms of unsure

1 Syllable

weak

2 Syllables

lacking, shakiest, dubious, open, vaguest, fluctuant, shakier, clouded, shaky, iffy, wimpy, doubtful, unclear, wobbly, suspect, vaguer, leery, rootless

3 Syllables

unstable, skeptical, aquake, ashake, unpoised, dithering, mistrustful, untrusty, hesitant, fly-by-night, wavering, perilous, suspicious, doubtable, self-conscious, ill-at-ease, precarious, vacillant, uncertain, distrustful, diffident

4 Syllables

untrustworthy, impugnable, unreliable, unapparent, jellylike, borderline, unconvinced, intangible, problematic, dubitable, hesitating, unspecific, vacillating, unconfident, shillyshally, undecided, unsupported, ambivalent, unassured, insecure

5 Syllables

problematical, irresolute, undependable, indecisive, indefinite

6 Syllables

indeterminable, indeterminate