FACTITIOUS Antonyms There are 6 antonyms of the word factitious. (opposite meanings)Did you mean?Definition of FACTITIOUSSynonyms of FACTITIOUSAlso try opposite words for..factitiousnessBest Opposite Words For FACTITIOUSTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1authenticadjectiveadj2genuineadjectiveadj3naturaladjectiveadj4realadjectiveadj5sincereadjectiveadj6unfeignedadjectiveadj Alternatives for AUTHENTIC Words (12)reliablegenuinerealtrustworthylegitimateoriginaltruevalidcredibleunquestionableveritableunfakedPhrases (1)bona fideOpposite words for authentic Alternatives for GENUINE Words (12)realtrueactualauthentichonestlegitimateoriginalsincereechtliteralnaturalunfeignedPhrases (1)bona fideOpposite words for genuine Alternatives for NATURAL Words (26)innateinstinctiveauthenticgenuineinbornindigenousinherentintrinsicorganicpurerealspontaneousunadulteratedunaffectedunspoileduntouchedinstinctualbiologicalborncancelinevitablelifelikenecessaryrawreasonablerudeOpposite words for natural Alternatives for REAL Words (22)actualgenuineauthenticmaterialsubstantialtangibletrueconcretehonestphysicalsinceresolidvalidveritableexistentheartfeltliteralrattlingreallyveridicalveryreiPhrases (2)bona fidereal numberOpposite words for real Alternatives for SINCERE Words (14)earnestauthenticcandiddevotedfrankgenuineheartfelthonestloyalserioustruetrustworthywholeheartedsolemnPhrases (1)bona fideOpposite words for sincere Alternatives for UNFEIGNED Words (8)genuinetrueauthenticearnestheartfeltrealsincereunaffectedOpposite words for unfeigned