onslaught

noun

on·​slaught ˈän-ˌslȯt 

ˈȯn-

: 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.

Synonyms of onslaught

• attack
• assault
• offensive
• raid
• offense
• aggression
• strike

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

The onslaught aims to terrorize civilians, officials and analysts say, and break their will to resist 4½ years after Russia’s full-scale invasion. — Susie Blann, Los Angeles Times, 1 Oct. 2026

The militant group took over roughly one-third of Iraq after key Iraqi army divisions collapsed and retreated in the onslaught. — Jane Arraf, NPR, 30 Sep. 2026

If the Yankees can overcome that onslaught of left-handed pitching, another division foe awaits them in the ALDS. — Gary Phillips, New York Daily News, 27 Sep. 2026

Stunned at first by his opponent’s aggressiveness and the onslaught of personal attacks, Ted trains himself to withstand the barrages and to respond in kind. — Bilge Ebiri, Vulture, 25 Sep. 2026

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

Rhymes for onslaught

• allot
• barat
• begot
• besought
• bethought
• bloodshot
• boycott
• buckshot
• crackpot
• croat
• culottes
• dashpot

Kids Definition

onslaught

noun

on·​slaught ˈän-ˌslȯt 

ˈȯn-

: a violent attack