1. In an immature manner
   "his teenage son still behaves very immaturely"
   - jejunely

See also: immature

Antonym: maturely

• bitchiness
• bitchy
• bite
• bite off
• bite out
• bite the bullet
• bite the dust
• bite-sized
• biteplate
• biter
• bitewing
• Bithynia
• biting
• biting louse
• biting midge
• bitingly
• Bitis
• Bitis arietans
• Bitis gabonica
• bitmap
• bitok
• bits per inch
• bits per second
• bitstock
• bitt