CLEAN OUT Antonyms There are 2 antonyms of the phrase clean out. (opposite meanings)Did you mean?Definition of CLEAN OUTBest Opposite Words For CLEAN OUTTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1clutterverb, nounv, n2fill upverbv Alternatives for CLUTTER Words (14)jumblemuddlechaosconfusiondisarraydisorderhodgepodgelittermesstangleuntidinessfuddlesmotherwelterPhrases (2)clutter upmare's nestOpposite words for clutter