| Main Entry: | |
| Part of Speech: | noun |
| Definition: | person who does not believe |
| Synonyms: | agnostic, cynic, disbeliever, headshaker, questioner, skeptic, unbeliever, zetetic |
| Antonyms: | believer, truster |
| Main Entry: | critic |
| Part of Speech: | noun |
| Definition: | faultfinder, detractor |
| Synonyms: | aristarch, attacker, backseat driver, belittler, blamer, carper, caviler, censor, censurer, complainant, complainer, defamer, disapprover, disparager, disputer, doubter, fretter, hypercritic, maligner, muckraker, mud-slinger, nagger, nit-picker, panner, quibbler, reviler, scolder, sidewalk superintendent, slanderer, vilifier, worrier, zapper |
| Antonyms: | complimenter, praiser |
| Main Entry: | cynic |
| Part of Speech: | noun |
| Definition: | nonbeliever |
| Synonyms: | carper, caviler, detractor, disbeliever, doubter, doubting Thomas, egoist, egotist, flouter, misanthrope, misanthropist, misogamist, misogynist, mocker, pessimist, questioner, satirist, scoffer, skeptic, sneerer, unbeliever |
| Antonyms: | believer, optimist |
| Main Entry: | doubting Thomas |
| Part of Speech: | noun |
| Definition: | skeptic |
| Synonyms: | disbeliever, doubter, questioner, unbeliever |
| Main Entry: | misanthrope |
| Part of Speech: | noun |
| Definition: | person who hates others |
| Synonyms: | cynic, doubter, egoist, egotist, hater, isolate, loner, misanthropist, recluse, skeptic |
| Antonyms: | humanitarian, philanthropist |
| Main Entry: | pagan |
| 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: | 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: | nonbeliever |
| Part of Speech: | noun |
| Definition: | unbeliever |
| Synonyms: | agnostic, atheist, doubter, heathen, infidel, pagan, skeptic |
| Antonyms: | believer |
| Main Entry: | misanthropist |
| Part of Speech: | noun |
| Definition: | cynic |
| Synonyms: | carper, caviler, detractor, disbeliever, doubter, doubting Thomas, egoist, egotist, flouter, misanthrope, misogamist, misogynist, mocker, pessimist, questioner, satirist, scoffer, skeptic, sneerer, unbeliever |