stumble

1 ENTRIES FOUND:
stumble /ˈstʌmbəl/ verb
stumbles; stumbled; stumbling
stumble
/ˈstʌmbəl/
verb
stumbles; stumbled; stumbling
Britannica Dictionary definition of STUMBLE
[no object]
1 
: to hit your foot on something when you are walking or running so that you fall or almost fall : trip
2 
always followed by an adverb or preposition : to walk in an awkward way
3 
a  : to speak or act in an awkward way
b  : to begin to have problems after a time of success
4 
always followed by an adverb or preposition : to find or learn about something unexpectedly

— stumble

noun, plural stumbles [count]

— stumbler

/ˈstʌmbəlɚ/ noun, plural stumblers [count]