bumble

Từ điển Oxford Advanced Learner 8th

bum·ble [bumble bumbles bumbled bumbling] BrE [ˈbʌmbl] NAmE [ˈbʌmbl] verb intransitive + adv./prep.
to act or move in an awkward or confused way
•I could hear him bumbling around in the kitchen.
Verb forms:

Word Origin:
late Middle English (in the sense ‘hum, drone’): from ↑boom ‘a loud sound’ + -le.

• Từ đồng nghĩa / Synonyms:
  stutter, stammer, falter, stumble, botch, bodge, fumble, botch up, muff, blow, flub, screw up, ball up, spoil, muck up, bungle, fluff, bollix, bollix up, bollocks, bollocks up