ANCILLARY Antonyms There are 5 antonyms of the word ancillary. (opposite meanings)Did you mean?Definition of ANCILLARYSynonyms of ANCILLARYBest Opposite Words For ANCILLARYTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1centraladjectiveadj2corenoun, adjectiven, adj3mainnoun, adjectiven, adj4primarynoun, adjectiven, adj5principalnounn Alternatives for CENTRAL Words (18)mainprincipalfundamentalkeybasiccentralizedcorecrucialessentialfocalmiddlepivotalprimaryprimedominantcardinalexchangeprimalPhrases (1)telephone exchangeOpposite words for central Alternatives for CORE Words (20)essencecentercruxheartkernelnucleusgistburdencentreeffecthomerinwardnessmarrowmeatnitty-grittynubpithsubstancesumomerPhrases (4)congress of racial equalitycore groupheart and soulmagnetic coreOpposite words for core Alternatives for MAIN Words (14)chiefprimaryprincipalcentralessentialfundamentalkeyleadingmajorpredominantlargestbrinyindependentmasterOpposite words for main Alternatives for PRIMARY Words (17)chiefmainprincipalbasiccentralessentialforemostfundamentalkeyleadingmajorpredominantprimarybasalelementalelementarymasterPhrases (5)primary coilprimary electionprimary featherprimary quillprimary windingOpposite words for primary Alternatives for PRINCIPAL Words (23)chiefmainprimaryheaddominantfirstforemostleadingprimesuperiortopclientcorpusdealerdeandiapasonheadmasterheadmistressleadmasterproprietorringleaderstarPhrases (3)head teacherprincipal sumschool principalOpposite words for principal