skeptic
[noun]
Synonyms: doubter, doubting Thomas, headshaker, Pyrrhonian, Pyrrhonist, unbeliever, zetetic

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Antonyms: believer
Contrasted words: accepter, apostle, disciple, follower, devotee, diehard
Related Words: questioner, agnostic, pessimist, scoffer, cynic, misanthrope, disbeliever

[TahlilGaran] English Synonym Dictionary ▲

I. scep‧tic British English, skeptic American English /ˈskeptɪk/ noun [countable]
a person who disagrees with particular claims and statements, especially those that are generally thought to be true:
Sceptics argued that the rise in prices was temporary.

[TahlilGaran] Dictionary of Contemporary English ▲

II. skep‧tic /ˈskeptɪk/ noun [countable]
[Date: 1500-1600; Language: Greek; Origin: skeptikos, from skeptikos 'thoughtful', from skeptesthai 'to look, consider']
the American spelling of sceptic

[TahlilGaran] Dictionary of Contemporary English ▲