/ Thesaurus / J Synonyms of just in case Find synonyms for: Adverb1. in case, just in caseusage: if there happens to be need; "in case of trouble call 911"; "I have money, just in case"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language