Entertainment The Most Immature Adult Celebs  

Celebrity Lists
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20.7k votes 2k voters 24.6k views 66 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
775 277
Donald Trump is listed (or ranked) 1 on the list The Most Immature Adult Celebs
age 71

2
402 138
Perez Hilton is listed (or ranked) 2 on the list The Most Immature Adult Celebs
age 40

3
724 233
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
age 24

4
874 185
Kanye West is listed (or ranked) 4 on the list The Most Immature Adult Celebs
age 40

5
61 19
Bethenny Frankel is listed (or ranked) 5 on the list The Most Immature Adult Celebs
minkietight added age 47

6
795 177
Kim Kardashian is listed (or ranked) 6 on the list The Most Immature Adult Celebs

7
67 20
Ann Coulter is listed (or ranked) 7 on the list The Most Immature Adult Celebs
minkietight added age 56

8
708 238
Miley Cyrus is listed (or ranked) 8 on the list The Most Immature Adult Celebs
age 25

9
75 16
Caitlyn Jenner is listed (or ranked) 9 on the list The Most Immature Adult Celebs

10
491 167
Chris Brown is listed (or ranked) 10 on the list The Most Immature Adult Celebs
age 28

11
49 10
Trixie Mattel is listed (or ranked) 11 on the list The Most Immature Adult Celebs
toputime added

12
42 8
Roxxxy Andrews is listed (or ranked) 12 on the list The Most Immature Adult Celebs
toputime added

13
446 157
Paris Hilton is listed (or ranked) 13 on the list The Most Immature Adult Celebs
age 37

14
346 153
Charlie Sheen is listed (or ranked) 14 on the list The Most Immature Adult Celebs
age 52

15
147 32
Farrah Abraham is listed (or ranked) 15 on the list The Most Immature Adult Celebs
ColinBoddy added age 26

16
534 203
Nicki Minaj is listed (or ranked) 16 on the list The Most Immature Adult Celebs
age 35

17
428 160
Kylie Jenner is listed (or ranked) 17 on the list The Most Immature Adult Celebs
age 20

18
29 8
Carole Radziwill is listed (or ranked) 18 on the list The Most Immature Adult Celebs
toputime added age 54

19
512 168
Kris Jenner is listed (or ranked) 19 on the list The Most Immature Adult Celebs
age 62

20
26 7
Phi Phi O'Hara is listed (or ranked) 20 on the list The Most Immature Adult Celebs
carljr52910 added

21
25 9
Detox is listed (or ranked) 21 on the list The Most Immature Adult Celebs
age 32

22
409 149
Lindsay Lohan is listed (or ranked) 22 on the list The Most Immature Adult Celebs
age 31

23
384 271
Taylor Swift is listed (or ranked) 23 on the list The Most Immature Adult Celebs
age 28

24
235 138
Andy Dick is listed (or ranked) 24 on the list The Most Immature Adult Celebs
age 52

25
32 14
Rush Limbaugh is listed (or ranked) 25 on the list The Most Immature Adult Celebs
age 67

26
20 5
Alaska Thunderfuck 5000 is listed (or ranked) 26 on the list The Most Immature Adult Celebs

27
256 219
Shia LaBeouf is listed (or ranked) 27 on the list The Most Immature Adult Celebs
age 31

28
24 22
Pope Francis is listed (or ranked) 28 on the list The Most Immature Adult Celebs
nbytrezws3dr7r654 added age 81

29
30 4
Amy Schumer is listed (or ranked) 29 on the list The Most Immature Adult Celebs
age 36

30
66 39
Katy Perry is listed (or ranked) 30 on the list The Most Immature Adult Celebs
JohnWade1 added age 33

31
23 11
Kid Rock is listed (or ranked) 31 on the list The Most Immature Adult Celebs
age 47

32
177 176
Alec Baldwin is listed (or ranked) 32 on the list The Most Immature Adult Celebs
age 57

33
18 6
Lena Dunham is listed (or ranked) 33 on the list The Most Immature Adult Celebs
age 31

34
126 166
Johnny Knoxville is listed (or ranked) 34 on the list The Most Immature Adult Celebs

35
126 158
Jessica Simpson is listed (or ranked) 35 on the list The Most Immature Adult Celebs

36
175 201
Kristen Stewart is listed (or ranked) 36 on the list The Most Immature Adult Celebs

37
46 62
Kevin Hart is listed (or ranked) 37 on the list The Most Immature Adult Celebs
Natalie Yu added age 38

38
176 222
Britney Spears is listed (or ranked) 38 on the list The Most Immature Adult Celebs

39
101 153
Macaulay Culkin is listed (or ranked) 39 on the list The Most Immature Adult Celebs

40
70 29
Mariah Carey is listed (or ranked) 40 on the list The Most Immature Adult Celebs
JohnWade1 added age 48

41
129 185
Seth MacFarlane is listed (or ranked) 41 on the list The Most Immature Adult Celebs

42
15 25
John McEnroe is listed (or ranked) 42 on the list The Most Immature Adult Celebs
JohnWade1 added age 59

43
35 5
Logan Paul is listed (or ranked) 43 on the list The Most Immature Adult Celebs

44
20 10
Iggy Azalea is listed (or ranked) 44 on the list The Most Immature Adult Celebs
age 27

45
121 173
Lady Gaga is listed (or ranked) 45 on the list The Most Immature Adult Celebs
age 32

46
14 9
Gary Busey is listed (or ranked) 46 on the list The Most Immature Adult Celebs
age 73

47
0 2
Aubrey Plaza is listed (or ranked) 47 on the list The Most Immature Adult Celebs
age 33

48
1 1
Anna Kendrick is listed (or ranked) 48 on the list The Most Immature Adult Celebs
age 32

49
174 221
Rihanna is listed (or ranked) 49 on the list The Most Immature Adult Celebs
age 30

50
23 7
Bella Thorne is listed (or ranked) 50 on the list The Most Immature Adult Celebs
age 20