WordReference Random House Learner's Dictionary of American English © 2026
bum•ble1 /ˈbʌmbəl/USA pronunciation
v. [no object], -bled, -bling.
bum•ble2 /ˈbʌmbəl/USA pronunciation v. [no object], -bled, -bling.
WordReference Random House Unabridged Dictionary of American English © 2026- to do a poor job;
bungle;
muddle. - to stumble awkwardly or clumsily:He bumbled into the room.
bum•ble2 /ˈbʌmbəl/USA pronunciation v. [no object], -bled, -bling.
- to make a buzzing, humming sound, as a bee.
bum•ble1
(bum′bəl),USA pronunciation v., -bled, -bling, n.
v.i.
v.t.
n.
bum′bler, n.
bum•ble2 (bum′bəl),USA pronunciation v.i., -bled, -bling.
v.i.
- to bungle or blunder awkwardly;
muddle:He somehow bumbled through two years of college. - to stumble or stagger.
- to speak in a low, stuttering, halting manner;
mumble.
v.t.
- to do (something) clumsily;
botch.
n.
- an awkward blunder.
- perh. blend of, blended bungle and stumble 1525–35
bum•ble2 (bum′bəl),USA pronunciation v.i., -bled, -bling.
- to make a buzzing, humming sound, as a bee.
- 1350–1400; Middle English bomblen, frequentative of bomben to boom, buzz; imitative