TERTIARY Antonyms There are 2 antonyms of the word tertiary. (opposite meanings)Did you mean?Definition of TERTIARYSynonyms of TERTIARYBest Opposite Words For TERTIARYTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1primarynoun, adjectiven, adj2secondaryadjectiveadj Alternatives for PRIMARY Words (17)chiefmainprincipalbasiccentralessentialforemostfundamentalkeyleadingmajorpredominantprimarybasalelementalelementarymasterPhrases (5)primary coilprimary electionprimary featherprimary quillprimary windingOpposite words for primary Alternatives for SECONDARY Words (12)additionalauxiliarybackupcollateralcomplementarysubordinatesubsidiaryjunior-gradelower-rankinglowlypettysubalternPhrases (2)secondary coilsecondary windingOpposite words for secondary