blunder

/ˈblʌndər/
noun
  1. A stupid or careless mistake.
    • The company's financial blunder cost them millions of dollars.
    • He admitted that his comment was a serious blunder.
    • Forgetting her name was a major blunder at the party.
Antonyms
verb
  1. To make a stupid or careless mistake.
    • She blundered through the test because she hadn't studied.
    • The chef blundered when he added salt instead of sugar.
    • I blundered by sending the email to the wrong person.
  2. To move clumsily or carelessly, often stumbling or bumping into things.
    • He blundered into the dark room, knocking over a chair.
    • She blundered down the stairs in the middle of the night.
    • The lost hiker blundered through the thick forest.
Synonyms
What does "blunder" mean? | whatsthatwordmean | whatsthatwordmean