stumble (n.)
- balk
- barge
- blunder
- bobble
- boner
- boo-boo
- botch
- breakdown
- bump
- bungle
- butcher
- careen
- career
- chance
- clump
- collapse
- comedown
- crash
- cropper
- deflation
- deviate
- dive
- downfall
- encounter
- err
- error
- fall
- falter
- find
- flop
- flounce
- flounder
- flub
- fluff
- fumble
- gag
- gaucherie
- halt
- hash
- haw
- header
- hem
- hit
- hum
- inadvertence
- inadvertency
- jib
- labor
- lapse
- light
- limp
- list
- luck
- lumber
- lurch
- mar
- meet
- mess
- miscue
- misstep
- mistake
- muck
- muddle
- muff
- murder
- omission
- oversight
- pause
- pitch
- plunge
- pose
- pratfall
- reel
- rock
- roll
- scruple
- shy
- slip
- smash
- snapper
- spill
- spoil
- sprawl
- stagger
- stammer
- stick
- strain
- stray
- struggle
- stump
- stutter
- sway
- swing
- tailspin
- tilt
- topple
- toss
- totter
- trip
- tumble
- wallop
- wallow
- waver
- welter
- wobble
stumble (v.)
- balk
- barge
- blunder
- bobble
- boggle
- botch
- bumble
- bump
- bungle
- butcher
- capsize
- careen
- career
- chance
- clump
- collapse
- crash
- deviate
- discover
- dive
- encounter
- err
- fall
- falter
- find
- flop
- flounce
- flounder
- flub
- fluff
- fumble
- gag
- halt
- hash
- haw
- hem
- hesitate
- hit
- hum
- jib
- labor
- lapse
- light
- limp
- list
- luck
- lumber
- lurch
- mar
- meet
- mess
- miscalculate
- mistake
- muck
- muddle
- muff
- murder
- pause
- pitch
- plunge
- pose
- reel
- rock
- roll
- scruple
- seethe
- shy
- slip
- smash
- spill
- spoil
- sprawl
- spread-eagle
- stagger
- stammer
- stick
- stickle
- strain
- stray
- struggle
- stump
- stutter
- sway
- swing
- tilt
- topple
- toss
- totter
- trip
- tumble
- wallop
- wallow
- wander
- waver
- welter
- wobble
