obtuse angle

American  

noun

1. an angle greater than 90° but less than 180°.

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obtuse angle Scientific  

/ ŏb-to̅o̅s′ /

1. An angle whose measure is between 90° and 180°.

2. Compare acute angle

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obtuse angle Cultural  

1. An angle that measures more than 90 degrees but less than 180 degrees. (Compare acute angle and right angle.)

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Other Word Forms

• obtuse-angled adjective
• obtuse-angular adjective

Etymology

Origin of obtuse angle

First recorded in 1560–70

Example Sentences

“You have a more obtuse angle between your forehead and your nose here,” he said, smoothing a finger between the middle of his brows.

From The Guardian

In 2018, a math teacher at Friends Seminary, a private Quaker school in downtown Manhattan, was fired after he demonstrated an obtuse angle by pointing his arm forward and saying, “Heil Hitler.”

From New York Times

But equally, she knows she could still look at the world from even more obtuse angles.

From The Guardian

The acute and sometimes obtuse angles of Bob Dylan’s career have teased and infuriated his public for more than half a century.

From The Guardian

Pulisic’s finish, from an awkward, wildly obtuse angle to the right of goal, skimmed into the net.

From New York Times