HEADCANON Antonyms There are 5 antonyms of the word headcanon. (opposite meanings)Did you mean?Definition of HEADCANONSynonyms of HEADCANONBest Opposite Words For HEADCANONTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1canonnoun, adjectiven, adj2factnounn3officialnoun, adjectiven, adj4realitynounn5truthnounn Alternatives for CANON Words (19)codecriterioncustomdictatedirectiveformulaguidelinemeasurenormpolicyprescriptionprincipleprotocolregulationrulestandardtenetyardstickcanyonOpposite words for canon Alternatives for FACT Words (10)accuracyactualityauthenticitycertaintycertitudegenuinenessrealitysuretytruthverityOpposite words for fact Alternatives for OFFICIAL Words (12)accreditedapprovedauthenticatedauthorizedcertifiedcommissionedformallegitimaterecognizedvalidfunctionaryprescribedOpposite words for official Alternatives for REALITY Words (5)actualityrealismrealnesstruthworldOpposite words for reality Alternatives for TRUTH Words (16)accuracyverityactualityauthenticitycorrectnessexactnessfactgenuinenesshonestyintegrityprecisionrealitysincerityvalidityveracitytruenessPhrases (3)sojourner truththe truetrue statementOpposite words for truth