SLEEPOUT Antonyms There are 2 antonyms of the word sleepout. (opposite meanings)Did you mean?Definition of SLEEPOUTBest Opposite Words For SLEEPOUTTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb Expand?WordSave?Synonyms..UsageTypelodge inverbvverb • live (in a certain place)stay putverbvverb • stay put (in a certain place)