1. (of a ship) sinking
   - going under

1. Fail utterly; collapse
   "The project foundered"
   - fall through, fall flat, flop 
2. Sink below the surface 
3. Break down, literally or metaphorically
   - collapse, fall in, cave in, give, give way, break 
4. Stumble and nearly fall
   "the horses foundered"

See also: fall

Type of: change, fail, go down, go under, go wrong, miscarry, settle, sink, sinking, stumble, trip

Encyclopedia: Founder

• underage
• underarm
• underbelly
• underbid
• underbodice
• underbody
• underboss
• underbred
• underbrush
• undercarriage
• undercharge
• underclass
• underclassman
• underclothed
• underclothes
• underclothing
• undercoat
• undercoated
• undercook
• undercover
• undercover agent
• undercover operation
• undercover work
• undercroft
• undercurrent