| Main Entry: | |
| Part of Speech: | noun |
| Definition: | person who does not believe in an orthodox religion |
| Synonyms: | agnostic, atheist, doubter, freethinker, heathen, heretic, iconoclast, idolater, idolist, infidel, paganist, pantheist, polytheist, scoffer, skeptic, unbeliever |
| Antonyms: | Christian, Jew, believer |
| Main Entry: | infidel |
| Part of Speech: | noun |
| Definition: | nonbeliever |
| Synonyms: | agnostic, atheist, gentile, heathen, heretic, nonworshiper, pagan, unbeliever |
| Main Entry: | skeptic |
| Part of Speech: | noun |
| Definition: | person who is leery, unbelieving |
| Synonyms: | agnostic, apostate, atheist, cynic, disbeliever, dissenter, doubter, doubting Thomas, freethinker, heathen, heretic, infidel, materialist, misanthrope, misbeliever, nihilist, pagan, pessimist, profaner, questioner, rationalist, scoffer, unbeliever |
| Antonyms: | believer, devotee, disciple |
| Main Entry: | heretic |
| Part of Speech: | noun |
| Definition: | schismatic |
| Synonyms: | apostate, cynic, pagan, sectarian, skeptic |
| Main Entry: | nonbeliever |
| Part of Speech: | noun |
| Definition: | unbeliever |
| Synonyms: | agnostic, atheist, doubter, heathen, infidel, pagan, skeptic |
| Antonyms: | believer |
| Main Entry: | unbeliever |
| Part of Speech: | noun |
| Definition: | skeptic |
| Synonyms: | agnostic, apostate, atheist, cynic, disbeliever, dissenter, doubter, doubting Thomas, freethinker, heathen, heretic, infidel, materialist, misanthrope, misbeliever, nihilist, nonbeliever, pagan, pessimist, profaner, questioner, rationalist, scoffer |