GROWNUP Antonyms There are 6 antonyms of the word grownup. (opposite meanings)Did you mean?Definition of GROWNUPSynonyms of GROWNUPAlso try opposite words for..grownupsBest Opposite Words For GROWNUPTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1adolescentnoun, adjectiven, adj2childnounn3juvenilenoun, adjectiven, adj4kidnoun, adjectiven, adj5minornoun, adjectiven, adj6youngsternounn Alternatives for ADOLESCENT Words (8)teenjejunejuvenilepuerilestriplingteenageteenagedteenagerOpposite words for adolescent Alternatives for CHILD Words (11)kidbabyfryminornestlingnippershavertiddlertiketykeyoungsterPhrases (1)small fryOpposite words for child Alternatives for JUVENILE Words (13)adolescentchildishchildlikeminorpubescentteenteenageyoungyouthfulpuerileinfantjejunemilkyPhrases (1)juvenile personOpposite words for juvenile Alternatives for KID Words (17)childminoryoungsteryouthyounglingbanterchafffryjollyjoshkidskinnestlingnippershavertiddlertiketykePhrases (4)pull the leg ofsmall frythomas kidthomas kydAbbreviations (1)kydOpposite words for kid Alternatives for MINOR Words (18)underagechildfrykidmodestnestlingnippernonagedpocket-sizepocket-sizedshaversmallsmall-scaletiddlertiketykevenialyoungsterPhrases (1)small fryOpposite words for minor Alternatives for YOUNGSTER Words (13)childkidadolescentteenageryouthfryminornestlingnippershavertiddlertiketykePhrases (1)small fryOpposite words for youngster