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Obtuse - Meaning, Definition & English Examples

Obtuse describes someone who is slow to understand or deliberately insensitive. It can also refer to an angle between 90 and 180 degrees, wider than a right angle.

obtuse

/əbˈtus/ /əbˈtjuːs/

Definition:

Slow to understand, lacking sharpness or intelligence; also describing an angle between 90 and 180 degrees.

Synonyms:

dull, stupid, slow-witted, dense

Part of Speech:

adjective

Antonyms:

sharp, acute

Common Collocations:

obtuse angle, obtuse remark, obtuse response

Derivatives:

obtuseness, obtusely

Usage Tips:

Use "obtuse" to describe someone slow to grasp ideas or an angle wider than 90 degrees but less than 180 degrees.

Common Phrases:

obtuse angle, being deliberately obtuse

Etymology:

From Latin *obtusus*, meaning "blunted" or "dull," from *obtundere* ("to beat against").

Examples:

  • 1. The teacher sighed at the student's obtuse question.
  • 2. He drew an obtuse angle on the board.
  • 3. Her obtuse remarks frustrated everyone in the meeting.
  • 4. The politician's answer was deliberately obtuse to avoid criticism.
  • 5. The triangle had one right angle and one obtuse angle.

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