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Synonyms

breakneck

American  
[brayk-nek] / ˈbreɪkˌnɛk /

adjective

  1. reckless or dangerous, especially because of excessive speed; hazardous.

    He raced through the streets at breakneck speed.


breakneck British  
/ ˈbreɪkˌnɛk /

adjective

  1. (prenominal) (of speed, pace, etc) excessive and dangerous

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of breakneck

First recorded in 1555–65; break + neck

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The power has switched with breakneck speed and, of course, it could switch back again if Celtic get their act together.

From BBC ● Sep. 20, 2026

And analysts said it forced traders to reassess their outlook for the speed of development in the industry following years of breakneck growth.

From Barron's ● Sep. 15, 2026

The titans of the booming artificial-intelligence industry have sounded a three-alarm fire, warning that AI poses an existential risk to the human race and urging a global slowdown in the breakneck pace of development.

From MarketWatch ● Sep. 14, 2026

In another exchange, traveling with reporters Thursday night, the president said he had no concerns with the breakneck pace of AI progress.

From Los Angeles Times ● Sep. 11, 2026

She felt the force of the air behind her, propelling her to turn around, and her legs took her at breakneck speed down the path.

From "Ash" by Malinda Lo

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