← Back to browseadultnoun#2,819Translationsアダルトアダルト一人前いちにんまえ成人せいじん大人おとなEnglish definitiona fully developed person from maturity onwardExamplesYou are now an adult.And yet, in the "real adult world" there are a lot of competitions.Similar wordsadultsadulteryadultingadulthoodadultereradultress← suspicioustodd →