Synonyms of unbelieving

2 Syllables

dubious, show-me, doubtful, leery, faithless, doubting

3 Syllables

agnostic, quizzical, skeptical, freethinking, free-thinking, cynical, mistrustful, undevout, atheistic, suspicious, questioning, distrustful

4 Syllables

ironical, heretical, misbelieving, battle-scarred, unconvinced, aporetic, disbelieving, irreligious, nonbelieving, unconverted