Entertainment The Most Immature Adult Celebs  

Celebrity Lists
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21.1k votes 2k voters 25.1k 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
796 281
Donald Trump is listed (or ranked) 1 on the list The Most Immature Adult Celebs
age 71

2
412 140
Perez Hilton is listed (or ranked) 2 on the list The Most Immature Adult Celebs
age 40

3
740 239
Justin Bieber is listed (or ranked) 3 on the list The Most Immature Adult Celebs
age 24

4
893 187
Kanye West is listed (or ranked) 4 on the list The Most Immature Adult Celebs
age 40

5
65 24
Bethenny Frankel is listed (or ranked) 5 on the list The Most Immature Adult Celebs
minkietight added age 47

6
808 182
Kim Kardashian is listed (or ranked) 6 on the list The Most Immature Adult Celebs

7
71 22
Ann Coulter is listed (or ranked) 7 on the list The Most Immature Adult Celebs
minkietight added age 56

8
724 242
Miley Cyrus is listed (or ranked) 8 on the list The Most Immature Adult Celebs
age 25

9
82 20
Caitlyn Jenner is listed (or ranked) 9 on the list The Most Immature Adult Celebs

10
497 170
Chris Brown is listed (or ranked) 10 on the list The Most Immature Adult Celebs
age 28

11
52 11
Trixie Mattel is listed (or ranked) 11 on the list The Most Immature Adult Celebs
toputime added

12
44 9
Roxxxy Andrews is listed (or ranked) 12 on the list The Most Immature Adult Celebs
toputime added

13
356 154
Charlie Sheen is listed (or ranked) 13 on the list The Most Immature Adult Celebs
age 52

14
155 34
Farrah Abraham is listed (or ranked) 14 on the list The Most Immature Adult Celebs
ColinBoddy added age 26

15
454 161
Paris Hilton is listed (or ranked) 15 on the list The Most Immature Adult Celebs
age 37

16
544 204
Nicki Minaj is listed (or ranked) 16 on the list The Most Immature Adult Celebs
age 35

17
31 8
Carole Radziwill is listed (or ranked) 17 on the list The Most Immature Adult Celebs
toputime added age 54

18
432 163
Kylie Jenner is listed (or ranked) 18 on the list The Most Immature Adult Celebs
age 20

19
519 170
Kris Jenner is listed (or ranked) 19 on the list The Most Immature Adult Celebs
age 62

20
28 9
Phi Phi O'Hara is listed (or ranked) 20 on the list The Most Immature Adult Celebs
carljr52910 added

21
417 150
Lindsay Lohan is listed (or ranked) 21 on the list The Most Immature Adult Celebs
age 29

22
26 10
Detox is listed (or ranked) 22 on the list The Most Immature Adult Celebs
age 32

23
390 275
Taylor Swift is listed (or ranked) 23 on the list The Most Immature Adult Celebs
age 28

24
237 139
Andy Dick is listed (or ranked) 24 on the list The Most Immature Adult Celebs
age 52

25
36 15
Rush Limbaugh is listed (or ranked) 25 on the list The Most Immature Adult Celebs
age 67

26
21 6
Alaska Thunderfuck 5000 is listed (or ranked) 26 on the list The Most Immature Adult Celebs

27
262 223
Shia LaBeouf is listed (or ranked) 27 on the list The Most Immature Adult Celebs
age 29

28
38 8
Amy Schumer is listed (or ranked) 28 on the list The Most Immature Adult Celebs
age 36

29
26 27
Pope Francis is listed (or ranked) 29 on the list The Most Immature Adult Celebs
nbytrezws3dr7r654 added age 81

30
70 41
Katy Perry is listed (or ranked) 30 on the list The Most Immature Adult Celebs
JohnWade1 added age 33

31
30 14
Kid Rock is listed (or ranked) 31 on the list The Most Immature Adult Celebs
age 47

32
21 7
Lena Dunham is listed (or ranked) 32 on the list The Most Immature Adult Celebs
age 31

33
179 181
Alec Baldwin is listed (or ranked) 33 on the list The Most Immature Adult Celebs
age 60

34
130 168
Johnny Knoxville is listed (or ranked) 34 on the list The Most Immature Adult Celebs

35
126 161
Jessica Simpson is listed (or ranked) 35 on the list The Most Immature Adult Celebs

36
178 203
Kristen Stewart is listed (or ranked) 36 on the list The Most Immature Adult Celebs

37
47 65
Kevin Hart is listed (or ranked) 37 on the list The Most Immature Adult Celebs
Natalie Yu added age 38

38
44 5
Logan Paul is listed (or ranked) 38 on the list The Most Immature Adult Celebs

39
105 156
Macaulay Culkin is listed (or ranked) 39 on the list The Most Immature Adult Celebs

40
178 225
Britney Spears is listed (or ranked) 40 on the list The Most Immature Adult Celebs

41
73 31
Mariah Carey is listed (or ranked) 41 on the list The Most Immature Adult Celebs
JohnWade1 added age 48

42
131 185
Seth MacFarlane is listed (or ranked) 42 on the list The Most Immature Adult Celebs

43
24 11
Iggy Azalea is listed (or ranked) 43 on the list The Most Immature Adult Celebs
age 27

44
16 25
John McEnroe is listed (or ranked) 44 on the list The Most Immature Adult Celebs
JohnWade1 added age 59

45
123 178
Lady Gaga is listed (or ranked) 45 on the list The Most Immature Adult Celebs
age 32

46
16 10
Gary Busey is listed (or ranked) 46 on the list The Most Immature Adult Celebs
age 71

47
31 8
Bella Thorne is listed (or ranked) 47 on the list The Most Immature Adult Celebs
age 20

48
2 2
Anna Kendrick is listed (or ranked) 48 on the list The Most Immature Adult Celebs
age 32

49
175 225
Rihanna is listed (or ranked) 49 on the list The Most Immature Adult Celebs
age 30

50
9 13
Luke Bryan is listed (or ranked) 50 on the list The Most Immature Adult Celebs
age 41