OUTDOOR Antonyms There are 4 antonyms of the word outdoor. (opposite meanings)Did you mean?Definition of OUTDOORSynonyms of OUTDOORAlso try opposite words for..outdoorsBest Opposite Words For OUTDOORTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1indooradverb, adjectiveadv, adj2insideadverbadv3interiornoun, adjectiven, adj4internaladjectiveadj Alternatives for INDOOR Words (5)closedinsideinteriorinternalinwardOpposite words for indoor Alternatives for INSIDE Words (8)interiorindoorsinnerwithininternalinwardinwardlyprivilegedPhrases (4)at bottomat heartdeep downin spite of appearanceOpposite words for inside Alternatives for INTERIOR Words (14)insideinternalinnercentralcoreinmostinnermostinwardmiddlewithinhomemidlandnationalupcountryPhrases (2)department of the interiorinterior departmentAbbreviations (1)doiOpposite words for interior Alternatives for INTERNAL Words (9)innerinteriorhomeinterninterneintimateintragroupnationalinlyOpposite words for internal