adultolescent 

A person who has physically matured to adulthood, yet still behaves like an adolescent.

My brother is 23 yet acts 15, he is such an adultolescent.

adultolescent by Casca June 3, 2009

adultolescent 

Your young adult roommate/friend who by all rights should be thriving at attempting to make a living in this world, but instead lives in your home and leeches off you constantly. Can't be bothered to find a job, make any money, clean anything or regularly contribute in any meaningful way. Fully expects you to take on the parent role and take care of them because "life is hard" and "its hard to find a job". Doesn't understand bills, cost of food, or responsibility of any kind.

Adultolscent

Leech: I applied for a couple jobs a while ago but haven't heard back yet. Did you buy groceries yet? Are you going to make supper?
Me: You are such an adultolescent. Get a job!

adultolescent by SammieKnowsWhatsUp July 2, 2016

Adultolescent 

A person supposedly matured into adulthood but still has no idea what they're really doing.

I'm just and adultolescent! In my world ramen and cereal are the only two food groups...

Adultolescent by itslikeacowmoo March 5, 2013

Adultescent 

1. Noun

An adult whose interests and behaviour follow youth culture; someone who has not fully grown up.

2. Adjective

An adult who has this pattern of behaviour.

1. I really cannot figure out how he dares to wear that outfit at 50. He's just an adultescent.

2. Let us go to another disco. This one is full of adultescents.

Adultescent by Ezechiel February 21, 2007

Adultalescent 

The parent of a teen-ager who doesn't parent but instead acts like a teenager themselves, dressing and behaving like an out of control high school student usually to the detriment of their actual teenage son or daughter.

Tiffany's mom bought us beer and then she spent the night driving us to parties and lying to our parents about where we really were - she's SUCH an adultalescent!

Adultalescent by JPoww08 March 21, 2013