Synonyms of skeptical

1 Syllable
couth
2 Syllables
jealous, dubious, show-me, scoffing, jet-set, doubtful, leery, faithless, doubting, jetset, godless
3 Syllables
agnostic, quizzical, jaundiced, factional, unsure, dissenting, untrusting, freethinking, cynical, world-weary, mistrustful, sectarian, untrusty, hesitant, suspicious, questioning, mondaine, vacillant, distrustful
4 Syllables
ironical, heretical, misbelieving, possessory, heterodox, unconvinced, aporetic, disbelieving, incredulous, hesitating, unbelieving, preconceived, unconverted, shillyshally
5 Syllables
sophisticated, unindifferent