a person who is fully grown or developed or of age.
a full-grown animal or plant.
a person who has attained the age of maturity as specified by law.
adjective
having attained full size and strength; grown up; mature: an adult person, animal, or plant.
of, relating to, or befitting adults.
intended for adults; not suitable for children: adult entertainment.
verb (used without object)
Informal. (of a young person) to do things and assume responsibilities that are associated with being an adult; act like an adult (usually used facetiously about minor accomplishments): I cook dinner for myself most nights—guess that means I'm adulting.
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WATCH NOW: We Asked: What Does It Mean To Be An "Adult"?
Should we be using "adulting" instead of the word "adult" these days?
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Origin of adult
First recorded in 1525–35; from Latin adultus “grown” (past participle of adolēre “to make grow”), equivalent to ad- ad- + ul- (identical with base al- in aliment) + -tus past participle suffix
Lundberg also touted recent innovations like the chocolate-covered Chocolate Thin Snackers and Organic Rice Cake Minis, a bite-sized version of the original product geared toward adults and kids crunching on the go.
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Those impressions were made by herds of juvenile and adult animals, the scientists say.
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While Justice’s adult children have day-to-day control over the family’s business operations, the governor continues to guide the empire.
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A rear bench seat fits two adults or children, with three-point seat belts and rated LATCH child-seat attachments.
Can’t Afford a Sprinter? Get a Tiny Van Instead.|Emily Pennington|September 16, 2020|Outside Online
That means a family could link watches for a child or older adult to a parent’s iPhone.
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Jones is a veteran of another beloved-yet-controversial animated series on Adult Swim, The Boondocks.