MISTAKENLY /mɪˈsteɪ.kən.li/ Scrabble 19 Words With Friends 21 Definition adverb in a mistaken or erroneous manner. — synonyms: erroneously Examples “I mistakenly assumed that the shop was still there.”“Today I mistakenly took your packed lunch to work.” See all 786 words you can make from MISTAKENLY → 10-letter words Words starting with M Words ending with Y ← Unscramble different letters