DictionaryblunderCareless mistake
noun / verb

blunder

BLUHN-der/ˈblʌndər/

To proceed clumsily and make careless mistakes.

The adult blunders into the meeting, spilling a trayful of papers.

An embarrassed adult accidentally spills an entire tray of papers while entering a quiet meeting, careless blunder.
Etymology

The early noun meant ‘disturbance’ or ‘trouble’ and apparently came from a verb meaning ‘stumble about blindly.’ Its later mistake sense connects confused, unguided movement with errors made through hurry or confusion.

In context

NOVA PBS Official41:14
astronomers in the 1920s and '30s concluded that the universe wasn't static at all, but expanding, he dropped his cosmological constant, and is said to have called it his "biggest blunder."
Decoding the Universe: Cosmos | Full Documentary | NOVA | PBS

More examples

  • The careless blunder delayed the shipment.
  • She blundered through the unfamiliar instructions.
  • Several accounting blunders inflated the final total.

Forms

blunder · blunders · blundered · blundering

Similar words

err
Makes a mistake without necessarily clumsiness or carelessness.
stumble
Can describe awkward movement or difficulty without an actual error.