| skeptical(adjective, false, belief, uncertain, negative) |
| disbelieving(adjective, belief, irreligious) |
| sceptical(adjective, unbelief doubt) |
| atheistic(adjective, independent, progressive, skeptical, nonconformist) |
| incredulous(adjective, belief, wary, skeptical, mistrustful) |
| faithless(adjective, dishonest, untrustworthy, sinful, unfaithful) |
| suspicious(adjective, uncertain, negative, doubtful, hesitant) |
| distrustful(adjective, negative, careful, doubtful, hesitant) |
| irreligious(adjective, ungodly, disbelieving, irreligious, unspiritual) |
| doubting(adjective, false, uncertain, dishonest, doubtful) |
| godless(adjective, ungodly, irreligious, unspiritual) |
| agnostic(noun, adjective, independent, progressive, skeptical) |
| atheist(noun, adjective, cynic, questioner, agnostic) |
| cynical(adjective, doubtful, skeptical, incredulity, nonbelieving) |
| doubtful(adjective, uncertain, careful, hesitant, suspicious) |
| mistrustful(adjective, wary, skeptical, distrustful) |
| dubious(adjective, false, uncertain, dishonest, doubtful) |
| heathen(noun, adjective, ungodly, irreligious, cynic) |
| pagan(noun, adjective, ungodly, irreligious, cynic) |
| profane(adjective, ungodly, irreligious, unspiritual) |