a person who is fully grown or developed 成年人 children should be accompanied by an adult. 儿童应有成人陪同。 ■a fully developed animal 成年动物 ■(Law)a person who has reached the age of majority (律)(达到法律规定成熟年龄的)成年人
adjective
(of a person or animal) fully grown or developed (人,动物)长成的,成年的 the adult inhabitants of Britain. 英国的成年居民。 ■of or for adult people (为)成年人的 adult education. 成人教育。 the responsibilities of adult life. 成人时期的种种责任。 ■emotionally and mentally mature (情感和精神上)成熟的 an effort to be adult and civilized. 变得成熟文明的努力。 ■suitable only for adults (used euphemistically to refer to a sexually explicit film, book, or magazine) 只适于成人的(委婉用法,用来指有明显性描写的电影、书籍或杂志)
派生 adulthood noun adultly adverb 语源
mid 16th cent.: from Latin adultus, past participle of adolescere 'grow to maturity' (see adolescent)