US /ˈblʌndɚ/ UK /ˈblʌndə/
noun verb

Meanings

  1. 1
    noun

    a careless mistake; (verb) to make such a mistake or move clumsily

    His one blunder cost the team the entire match.

Thesaurus

Synonyms
1 noun · a careless mistake; (verb)... mistakeerrorgaffeslipbotchfumblestumbleflounder
Word family
Forms blunderer
Derived forms blundererblundering
Related forms blind

Etymology

From Middle English blunderen ('to stumble, move blindly'), probably from a Scandinavian source related to Old Norse blunda ('to shut the eyes, doze'), suggesting acting blindly.

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