/ Thesaurus / O Synonyms of out of door Find synonyms for: Adjective1. outdoor(prenominal) (vs. indoor), out-of-door, outside, alfresco, open-air(prenominal), outdoorsy, exteriorusage: located, suited for, or taking place in the open air; "outdoor clothes"; "badminton and other outdoor games"; "a beautiful outdoor setting for the wedding"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language