INCONCEIVABLE /ɪŋ.kən.ˈsiː.və.bɫ̩/ Scrabble 22 Words With Friends 29 Definition adjective totally unlikely. — synonyms: impossible, out_of_the_question, unimaginable See all 443 words you can make from INCONCEIVABLE → 13-letter words Words starting with I Words ending with E ← Unscramble different letters