SKEPTICISM /ˈskɛp.tɪˌsɪ.zəm/ Scrabble 20 Words With Friends 23 Definition noun doubt about the truth of something. — synonyms: incredulity, disbelief, mental_rejection noun the disbelief in any claims of ultimate knowledge. — synonyms: agnosticism, scepticism See all 245 words you can make from SKEPTICISM → 10-letter words Words starting with S Words ending with M ← Unscramble different letters