FLOOR Antonyms There are 3 antonyms of the word floor. (opposite meanings)Did you mean?Definition of FLOORSynonyms of FLOORAlso try opposite words for..floorsflooredflooringBest Opposite Words For FLOORTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1ceilingnounn2roofverb, nounv, n3skynounn Alternatives for ROOF Words (11)ceilingcapawningcanopycoveringdomelidsheltertoprooftopthatchOpposite words for roof Alternatives for SKY Words (13)firmamentatmospherebluecelestialetherheavensvaultwelkinflipheavenliftpitchtossPhrases (1)celestial sphereOpposite words for sky