noun
- a stupid or careless mistake
verb
- to make a stupid or careless mistake
- to move clumsily or without direction
Examples
- The accountant’s blunder cost the company thousands of dollars.
- It was a major blunder to forget the presentation materials.
- She blundered by sending the email to the wrong person.
- He blundered through his speech without preparation.
- The hiker blundered through the dark forest without a flashlight.
- Don’t blunder into making the same mistake twice.
- The team’s defensive blunder led to the opposing goal.