Synonyms of skeptical

Adjective

1. disbelieving, skeptical, sceptical, unbelieving, incredulous (vs. credulous)

usage: denying or questioning the tenets of especially a religion; "a skeptical approach to the nature of miracles"

2. doubting, questioning, skeptical, sceptical, distrustful (vs. trustful)

usage: marked by or given to doubt; "a skeptical attitude"; "a skeptical listener"

Definition and meaning of skeptical (Dictionary)