1. Lacking tucks or not being tucked
   "the sheet came untucked"; "plain untucked shirt front"

Antonym: tucked

• under-the-counter
• under-the-table
• underachieve
• underachievement
• underachiever
• underact
• underactive
• underage
• underarm
• underbelly
• underbid
• underbodice
• underbody
• underboss
• underbred
• underbrush
• undercarriage
• undercharge
• underclass
• underclassman
• underclothed
• underclothes
• underclothing
• undercoat
• undercoated