unsure

not feeling sure about the truth, wisdom, or trustworthiness of someone or something <unsure of her ability to handle the pressure of competing in the Olympic Games> Synonyms distrustful, dubious, hinky [slang], mistrustful, skeptical, suspicious, trustless, uncertain, unconvinced, undecided, unsettled, doubtfulRelated Words ambivalent, conflicted, equivocal; diffident, insecure; halting, hesitant, indecisive, irresolute, vacillating, waveringNear Antonyms assured, confident, sanguine, self-assured; decisive, determined, resoluteAntonyms certain, convinced, positive, sure