A so-called grown-up who doesn't want to grow up (or at least act like an adult) and would instead prefer so-called "children's" stuff for entertainment, like cartoons, toys, comic books, Disney movies, etc. He or she also enjoys colorful "kiddie" snacks like breakfast cereal and Spaghetti-O's and dresses like a teenager or perhaps younger. May or may not be great parents as well as being able to take on adult responsibilities. Not necessarily too immature at least in the public. Not to to be confused with geeks or nerds either, of course!

Also known as "Peter Pan", "young at heart", and "kid at heart".
I'm almost 35 and I love Neopets, Archie comics, children's books, etc. So this makes me a kidult, heh.

by Screambug January 09, 2006
A kidult is an adult that prefers items that society deems are for a younger person.
An adult who plays with toys or games. Also could be an adult who wears clothing that a teenager or younger person would wear.
by Bob O'Keefe June 28, 2005
An individual caught between childhood and adulthood. Often a college student or recent graduate anxious to enter the adult workforce, but is unable to because they still financially depend on their parents or guardians.

Kidults often run into the problem of finding a job at their level: they are overqualified for jobs in retail or fast food, but underqualified to work in most administrative positions."

See college graduate adulthood frustration wah
Peter: "Whole Foods doesn't want me as a cart-boy, but Microsoft requires 3-5 years experience as a computer engineer! What the heck am I supposed to do?"

Jane: "Ah, the trials of a Kidult."
by BloggerANS February 23, 2013
An adult that acts more like a kid.
Its time for you to stop acting like a kidult and take some responsibility.
by Tabitha Cox January 22, 2009
A grown up that is also a kid. A fun loving, nice, hyper, funny, slightly inopropriate person. And super, super weird.

An example of a kidult is a Sarah Petrie. A sarah petrie is a funny person.
(being a kidult may result in short, tiny seizure)
person 1: Why are you acting like that? You are acting like a kid!
person 2: That's because I'm a kidult
by Bunnygirl117 December 24, 2013
Term of endearment for one's adult children.
"All three of my kidults are coming over for dinner on Sunday!"

"I hope my kidults start making babies soon---I don't want to be an old granny."
by Booyana January 30, 2010
Someone that, in adulthood, proudly maintains juvenile tendencies. A kidult may be 39, yet still play video games and drink energy drinks, and kick ass at both.
Hells yeah I got the new CoD on my xbox 720*, fool. I'm a kidult after all.

*trying to future proof the sentence
by waterygrave March 04, 2011

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