HEADFIRST Antonyms There are 2 antonyms of the word headfirst. (opposite meanings)Did you mean?Definition of HEADFIRSTBest Opposite Words For HEADFIRSTTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1backwardadverb, adjectiveadv, adj2feetfirstadjectiveadj Alternatives for BACKWARD Words (23)retrograderearwardcontrariwiseinverseinvertedoppositeregressiveretreatretrogressivereversedbackwardsantediluvianantiquatedbackdevelopinghistoricaloverduetardyforepastfeeblemindedhalf-wittedrearwardsslow-wittedPhrases (1)third worldOpposite words for backward