Bedeutung von “blunder” — Learner’s Dictionary

blunder

verb us uk /ˈblʌndər/

[ I ] to make a serious mistake

blunder around/into, etc

to move somewhere in a heavy way, as if you cannot see well:

He blundered around, looking for the light switch.

(Definition von “blunder verb” aus dem Cambridge Learner's Dictionary © Cambridge University Press)