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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1, Anyone over eighteen years of age counts as adult.
2, Children under 14 must be accompanied by an adult.
3, Children quickly get bored by adult conversation.
4, Far more resources are needed to improve adult literacy.
5, He is adult in behaviour.
6, Children who behave badly are rejecting adult values.
7, She has diminutive hands for an adult.
8, His behaviour is not particularly adult.
9, Most adult education centres offer computing courses.
10, Children must be accompanied by an adult.
11, An adult under British law is someone over 18 years old.
12, She was very sympathetic to the problems of adult students.
13, The adult can be readily distinguished by its orange bill.
14, The little boy felt strange amid so many adult people.
15, This boom in adult education, in turn, helps to raise the intellectual standard of the whole country.
16, Over one-quarter of the adult population are not fully literate.
17, Is the coffee break the adult version of recess?
18, Bonington spent his entire adult life in France.
19, As an adult, you can assess the situation realistically.
20, Children's prices are shown alongside adult prices.
21, Children unaccompanied by an adult will not be admitted.
22, All adult males will be liable for conscription.
23, Admission is ￡9.95 per adult.
24, That wasn't very adult of you.
25, Joe still needs an adult to undress him.
26, Eventually your child will leave home to lead her own life as a fully independent adult,(http://sentencedict.com/adult.html) but in the meantime she relies on your support.
27, The novel tells the story of a teenager driven to despair by the hypocrisy of the adult world.
28, Offering advice on each and every problem will undermine her feeling of being adult.
29, I have often thought it would be a blessing if each human being were stricken blind and deaf for a few days at some time during his early adult life. Darkness would make him more appreciative of sight; silence would tech him the joys of sound.
30, It is important that an adolescent boy should have an adult in whom he can confide.
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.