CONCEPT Antonyms There are 5 antonyms of the word concept. (opposite meanings)Did you mean?Definition of CONCEPTSynonyms of CONCEPTAlso try opposite words for..conceiveconceptualconceptuallyconceptualiseconceptualizeBest Opposite Words For CONCEPTTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1actualitynounn2certaintynounn3factnounn4realitynounn5truthnounn Alternatives for ACTUALITY Words (3)factrealitytruthOpposite words for actuality Alternatives for CERTAINTY Words (15)surenessassuranceconclusivenessconfidenceconvictiondecisivenessdefinitenessdeterminationfirmnesspositivityreliabilitysafetysecuritysuretycertitudePhrases (2)sure thingforegone conclusionOpposite words for certainty Alternatives for FACT Words (10)accuracyactualityauthenticitycertaintycertitudegenuinenessrealitysuretytruthverityOpposite words for fact Alternatives for REALITY Words (5)actualityrealismrealnesstruthworldOpposite words for reality Alternatives for TRUTH Words (16)accuracyverityactualityauthenticitycorrectnessexactnessfactgenuinenesshonestyintegrityprecisionrealitysincerityvalidityveracitytruenessPhrases (3)sojourner truththe truetrue statementOpposite words for truth