MALFUNCTION /ˌmælˈfʌŋk.ʃən/ ► audio Scrabble 18 Words With Friends 24 Definition verb fail to function or function improperly. — synonyms: misfunction noun a failure to function normally. Examples “She told him the machine was poorly built, but they both knew that she was the one who had malfunctioned.” See all 430 words you can make from MALFUNCTION → 11-letter words Words starting with M Words ending with N ← Unscramble different letters