Entertainment The Most Immature Adult Celebs  

Celebrity Lists
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22.6k votes 2.2k voters 27.2k views 68 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
869 298
Donald Trump is listed (or ranked) 1 on the list The Most Immature Adult Celebs
age 72
2
447 148
Perez Hilton is listed (or ranked) 2 on the list The Most Immature Adult Celebs
age 40
3
787 252
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
age 24
4
939 193
Kanye West is listed (or ranked) 4 on the list The Most Immature Adult Celebs
age 41
5
78 38
Bethenny Frankel is listed (or ranked) 5 on the list The Most Immature Adult Celebs
minkietight added age 48
6
93 31
Ann Coulter is listed (or ranked) 6 on the list The Most Immature Adult Celebs
minkietight added age 57
7
846 192
Kim Kardashian is listed (or ranked) 7 on the list The Most Immature Adult Celebs
8
109 27
Caitlyn Jenner is listed (or ranked) 8 on the list The Most Immature Adult Celebs
9
760 255
Miley Cyrus is listed (or ranked) 9 on the list The Most Immature Adult Celebs
age 26
10
526 174
Chris Brown is listed (or ranked) 10 on the list The Most Immature Adult Celebs
age 29
11
67 22
Trixie Mattel is listed (or ranked) 11 on the list The Most Immature Adult Celebs
toputime added
12
61 18
Roxxxy Andrews is listed (or ranked) 12 on the list The Most Immature Adult Celebs
toputime added
13
376 158
Charlie Sheen is listed (or ranked) 13 on the list The Most Immature Adult Celebs
age 53
14
172 38
Farrah Abraham is listed (or ranked) 14 on the list The Most Immature Adult Celebs
ColinBoddy added age 27
15
479 168
Paris Hilton is listed (or ranked) 15 on the list The Most Immature Adult Celebs
age 38
16
39 11
Carole Radziwill is listed (or ranked) 16 on the list The Most Immature Adult Celebs
toputime added age 55
17
570 213
Nicki Minaj is listed (or ranked) 17 on the list The Most Immature Adult Celebs
age 36
18
461 166
Kylie Jenner is listed (or ranked) 18 on the list The Most Immature Adult Celebs
age 21
19
544 172
Kris Jenner is listed (or ranked) 19 on the list The Most Immature Adult Celebs
age 63
20
39 13
Phi Phi O'Hara is listed (or ranked) 20 on the list The Most Immature Adult Celebs
carljr52910 added
21
34 14
Detox is listed (or ranked) 21 on the list The Most Immature Adult Celebs
age 33
22
444 154
Lindsay Lohan is listed (or ranked) 22 on the list The Most Immature Adult Celebs
age 32
23
411 290
Taylor Swift is listed (or ranked) 23 on the list The Most Immature Adult Celebs
age 29
24
49 18
Rush Limbaugh is listed (or ranked) 24 on the list The Most Immature Adult Celebs
age 68
25
248 139
Andy Dick is listed (or ranked) 25 on the list The Most Immature Adult Celebs
age 53