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confound

B2
Uncommon

Pronunciation

UK

  • /kənfˈaʊnd/

US

  • /ˈkɑnˌfaʊnd/

Meanings

Verb

  1. to confuse, puzzle, or bewilder someone

  2. to mix up two things or fail to distinguish them

  3. to defeat a plan, prediction, or expectation

Noun

  1. a factor that can distort or obscure a research result

Beyond the definition

To confound someone is to confuse them so much that they can’t think clearly for a moment. It’s stronger than a simple misunderstanding—it’s the feeling of being thrown off by something hard to explain or unexpected. A baffling mystery might confound detectives for years, while a clever argument could confound an opponent in a heated debate.

It can also mean to mix two things up: people sometimes confound one person with another, or confound cause with effect. And in a related sense, it can mean to prove someone wrong (often in a way that surprises them).

Examples

  1. 1

    Puzzle

    The final clue in the puzzle confounded me for hours.

  2. 2

    Medical surprise

    Even experienced doctors were confounded by the patient's sudden recovery.

  3. 3

    Unexpected response

    Her calm, polite answer confounded everyone who expected her to argue back.

  4. 4

    Expectations

    His success in the role confounded all our expectations.

    • Patternconfound expectations

      be very different from what people expected

More examples
  1. 5

    Scientific theory

    The new evidence confounded the theory they had relied on for years.

    • Patternconfound a theory

      show that it may be wrong or incomplete

See also

Similar

Shades of meaning

Contrast

Used with (collocations)

  • confound the issue
  • confound matters

Word family

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Forms and spellings

4 forms open this card.

Main spelling

  • confoundverb

Forms

  • confounding-ing formverb
  • confoundedpast tenseverb
  • confoundsverb