to strike the foot against something, as in walking or running, so as to stagger or fall; trip.

to walk or go unsteadily

to stumble down a dark passage.

to make a slip, mistake, or blunder, esp. a sinful one

to stumble over a question; to stumble and fall from grace.

to proceed in a hesitating or blundering manner, as in action or speech (often fol. by along ).

to discover or meet with accidentally or unexpectedly (usually fol. by on, upon, or across )

They stumbled on a little village.

to falter or hesitate, as at an obstacle to progress or belief.

to cause to stumble; trip.

to give pause to; puzzle or perplex.

the act of stumbling.

a moral lapse or error.

a slip or blunder.

verb

lose , overlook

verb

blunder , bumble , careen , err , fall , fall down , falter , flounder , hesitate , limp , lose balance , lumber , lurch , muddle , pitch , reel , shuffle , stammer , swing , tilt , topple , totter , trip , wallow , waver , wobble , blunder upon , bump , chance , chance upon , come across , come up against , discover , encounter , fall upon , find , hit , light , light upon , luck * , meet , run across , stub toe on , tumble , turn up , stagger , teeter , weave , bungle , fudge , fumble , miscue , mistake , slip , slip up , trip up , botch , error , failure , happen , spill

phrasal verb

bump into , chance on , come across , come on , find , happen on , light on , run across , run into , tumble on

noun

bull , bungle , foozle , fumble , muff