Celebrities

The Most Immature Adult Celebs 

Celebrity Lists
Originally by
Updated October 29, 2019 27.2k votes 2.5k voters 30.4k views 71 items

List Rules Vote up the adult celebrities (18 or older) who exhibit childish behavior and need to grow tf up.

When it comes to celebrities who don't act their age, Hollywood pretty much has an endless supply. Not that acting like a kid is always a bad thing. Sometimes celebrities who are immature can be hilarious, entertaining us with their antics in movies or TV shows. (What kind of world would this be without Will Ferrell acting like a jealous step-brother, adorable elf, or self-obsessed anchorman?) But other times, immature celebrities can be super annoying.  Their constant attempts to prove just how "shocking" or "edgy" the are leads to ridiculously bad behavior that the whole world has to put up with.

So which famous immature people are the most childish of them all? This list will help us finally figure it out. Less than impressed with Miley's many Instagram photos of her new sex toys? Totally over naked selfies from Kim Kardashian-West? Literally can't stand anything Justin Bieber does? You're not alone! Make sure the worst offenders are at the top of this immature celebrity list! 

Vote up the celebrities who act immature on the most consistent basis. Here's hoping they finally grow up. (But don't hold your breath.)

list ordered by
1
Donald Trump is listed (or ranked) 1 on the list The Most Immature Adult Celebs
Age 72 from New York City, New York, United States of America
2
Kanye West is listed (or ranked) 2 on the list The Most Immature Adult Celebs
Age 41 from Georgia, USA, Atlanta
3
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
Age 24 from London, Canada
4
Miley Cyrus is listed (or ranked) 4 on the list The Most Immature Adult Celebs
Age 26 from Nashville, Tennessee, United States of America
5
Perez Hilton is listed (or ranked) 5 on the list The Most Immature Adult Celebs
Age 40 from Miami, Florida, United States of America
6
Kim Kardashian is listed (or ranked) 6 on the list The Most Immature Adult Celebs
Age 38 from Los Angeles, California, United States of America
7
Chris Brown is listed (or ranked) 7 on the list The Most Immature Adult Celebs
Age 29 from Tappahannock, Virginia, United States of America
8
Kris Jenner is listed (or ranked) 8 on the list The Most Immature Adult Celebs
Age 63 from San Diego, California, United States of America
9
Caitlyn Jenner is listed (or ranked) 9 on the list The Most Immature Adult Celebs
Age 69 from Mount Kisco, New York, United States of America
10
Paris Hilton is listed (or ranked) 10 on the list The Most Immature Adult Celebs
Age 38 from New York City, New York, United States of America
11
Charlie Sheen is listed (or ranked) 11 on the list The Most Immature Adult Celebs
Age 53 from New York City, USA, New York
12
Ann Coulter is listed (or ranked) 12 on the list The Most Immature Adult Celebs
minkietight added Age 57 from New York City, New York, United States of America
13
Lindsay Lohan is listed (or ranked) 13 on the list The Most Immature Adult Celebs
Age 32 from New York City, USA, New York
14
Nicki Minaj is listed (or ranked) 14 on the list The Most Immature Adult Celebs
Age 36 from Saint James, Trinidad and Tobago
15
Taylor Swift is listed (or ranked) 15 on the list The Most Immature Adult Celebs
Age 29 from Reading, Pennsylvania, United States of America
16
Kylie Jenner is listed (or ranked) 16 on the list The Most Immature Adult Celebs
Age 21 from Calabasas, California, United States of America
17
Bethenny Frankel is listed (or ranked) 17 on the list The Most Immature Adult Celebs
minkietight added Age 48 from New York City, New York, United States of America
18
Andy Dick is listed (or ranked) 18 on the list The Most Immature Adult Celebs
Age 53 from Charleston, South Carolina, USA
19
Roxxxy Andrews is listed (or ranked) 19 on the list The Most Immature Adult Celebs
toputime added
20
Farrah Abraham is listed (or ranked) 20 on the list The Most Immature Adult Celebs
ColinBoddy added Age 27 from Omaha, Nebraska, United States of America
21
Trixie Mattel is listed (or ranked) 21 on the list The Most Immature Adult Celebs
toputime added Trixie Mattel
22
Shia LaBeouf is listed (or ranked) 22 on the list The Most Immature Adult Celebs
Age 32 from Los Angeles, California, United States of America
23
Amy Schumer is listed (or ranked) 23 on the list The Most Immature Adult Celebs
Age 37 from Manhattan, New York City, New York, United States of America
24
Rush Limbaugh is listed (or ranked) 24 on the list The Most Immature Adult Celebs
Age 68 from Cape Girardeau, Missouri, United States of America
25
Phi Phi O'Hara is listed (or ranked) 25 on the list The Most Immature Adult Celebs
carljr52910 added Phi Phi O'Hara