Synonyms of onslaught
: an especially fierce attack
… the tremendous onslaught across the Rhine …—Winston Churchill
also : something resembling such an attack
an onslaught of technological changes
Employers are expecting an onslaught of recent college graduates.

Examples of onslaught in a Sentence

an onslaught by the enemy the massive onslaught of enemy troops caught the country by surprise
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Its songs are littered with black holes, disasters, nuclear bombs; there are guttural screams and onslaughts of distorted guitar. — Marissa Lorusso, Pitchfork, 28 Oct. 2026 The onslaught opened with an alley-oop slam by Wembanyama followed by a 3-pointer from Devin Vassell. — CBS News, 28 Oct. 2026 What happened in return was an Israeli military onslaught that has killed more than 74,000 Palestinians, according to Gaza's Health Ministry, and left most of Gaza destroyed. — Daniel Estrin, NPR, 28 Oct. 2026 Amplified by Ted Lasso‘s pandemic release, Mohammed felt sheltered from much of the onslaught of attention. — Lily Ford, HollywoodReporter, 28 Oct. 2026 See All Example Sentences for onslaught

Word History

Etymology

modification of Dutch aanslag act of striking; akin to Old English an on and to Old English slēan to strike — more at slay

First Known Use

circa 1625, in the meaning defined above

Time Traveler
The first known use of onslaught was circa 1625

Browse Nearby Words

Cite this Entry

“Onslaught.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onslaught. Accessed 1 Nov. 2026.

Kids Definition

onslaught

noun
: a violent attack
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster