Synonym: full-grown, grown-up, mature, of age. Antonym: child, childlike. Similar words: schedule, head up, credulous, on schedule, graduate, gradually, lead up to, graduation. Meaning: ['ædʌlt] 
n. 1. a fully developed person from maturity onward 2. any mature animal. adj. (of animals) fully developed.
n. 1. a fully developed person from maturity onward 2. any mature animal. adj. (of animals) fully developed. 
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61, All adult dogs are routinely wormed at least every six months.
62, We were very adult about it. We discussed it rationally over a drink.
63, Bevin is now an adult and has re-lived her birth experience under hypnosis.
64, The film is about his adult life, but it keeps jumping to when he was a child.
65, We have subtracted $25 per adult to arrive at a basic room rate.
66, Family problems in childhood can set the stage for stress in adult life.
67, If you want us to treat you as an adult, you have to act maturely.
68, Eventually your child will leave home to lead her own life as a fully independent adult.
69, Children aged twelve or under must be accompanied by an adult.
70, Her misbegotten father spent most of his adult life in prison.
71, The program is designed to satisfy the needs of adult learners.
72, The film is rated R for language and adult themes.
73, The number of single adult households has doubled in the past 30 years.
74, Children must use an approved child restraint or adult seat belt.
75, Children do not use inflections such as are used in mature adult speech.
76, An adult conger eel can easily bite through a man's leg.
77, It is self-evident that childhood experiences influence our adult behaviour.
78, We should do our best to develop the adult education.
79, The movie has been rated 'R' due to adult subject matter.
80, An adult cat may produce kittens three times a year.
81, Small children can't be expected to have the same self-control as an adult.
82, Learning to read as an adult is tough work, but you can win this battle if you try.
83, Johnny cries whenever he must say hello to an adult; he is afraid of his own shadow.
84, When my parents split up,(sentencedict.com) it was all very adult and open.
85, Through play, children act out in miniature the dramas of adult life.
86, Becoming a father signified that he was now an adult.
87, He was a little boy, but he behaved as if he was an adult.
88, In many societies, young people are formally initiated into their adult roles.
89, Which adult in these children's lives will provide the nurturing they need?
90, Many older people may prefer not to be separated out from the rest of the adult population.
More similar words: schedule, head up, credulous, on schedule, graduate, gradually, lead up to, graduation, behind schedule, ahead of schedule, undergraduate, result, consult, culture, assault, faculty, as a result, cultural, multiple, result in, ultimate, difficult, be useful to, result from, as a result of, ultimately, consultant, agriculture, agricultural, simultaneously.