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Synonyms

assail

American  
[uh-seyl] / əˈseɪl /

verb (used with object)

  1. to attack vigorously or violently; assault.

  2. to attack with arguments, criticism, ridicule, abuse, etc..

    to assail one's opponent with slander.

    Synonyms:
    malign, asperse
  3. to undertake with the purpose of mastering.

    He assailed his studies with new determination.

  4. to impinge upon; make an impact on; beset.

    His mind was assailed by conflicting arguments.

    The light assailed their eyes.


assail British  
/ əˈseɪl /

verb

  1. to attack violently; assault

  2. to criticize or ridicule vehemently, as in argument

  3. to beset or disturb

    his mind was assailed by doubts

  4. to encounter with the intention of mastering

    to assail a problem

    to assail a difficult mountain ridge

"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

Related Words

See attack.

Other Word Forms

  • assailable adjective
  • assailableness noun
  • assailer noun
  • assailment noun
  • unassailed adjective
  • unassailing adjective

Etymology

Origin of assail

1175–1225; Middle English asaylen < Old French asalir < Late Latin assalīre, equivalent to Latin as- as- + salīre to leap, spring

Explanation

To assail is to attack or assault — with throwing stars, fists, words or, less tangibly but just as violently, with troubles or doubts. Believe it or not, assail evolved from the ancient Latin word assilire, which means "to jump on." So picture an attacker jumping on you, throwing punches and maybe some insults, too. Because assail also means to ridicule or heap your worries upon someone. As novelist Charlotte Bronte noted, “Conventionality is not morality. Self-righteousness is not religion. To attack the first is not to assail the last.” Think on that.

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Vocabulary lists containing assail

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.

Musk found that cartoonist’s tweet and called his ban “insane,” inspiring his followers to assail r/comics.

From Slate • Mar. 13, 2025

In Germany emerged so-called "Herod games" in which people would reportedly stage mock attacks on churches and assail bystanders with inflated animal bladders to ridicule the cruel absurdity of the Judean king.

From Salon • Dec. 23, 2024

Go ahead, criticize the Biden administration and assail its record.

From Los Angeles Times • Aug. 30, 2024

And once Catherine’s cancer was revealed, British media were quick to assail their counterparts across the pond, accusing American tabloids and media figures of recklessly amplifying the more outlandish rumors.

From New York Times • Mar. 24, 2024

If we make no answer, the Enemy may move Men of his rule to assail King Brand, and Dáin also.’

From "The Fellowship of the Ring" by J.R.R. Tolkien