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assailant

American  
[uh-sey-luhnt] / əˈseɪ lənt /

noun

  1. a person who attacks.


adjective

  1. Archaic. assailing; attacking; hostile.

assailant British  
/ əˈseɪlənt /

noun

  1. a person who attacks another, either physically or verbally

    he was unable to recognize his assailants

"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 assailant

From the Middle French word assaillant, dating back to 1525–35. See assail, -ant

Explanation

A wife who sends a vase sailing at her husband's head might be considered an assailant, or attacker. Or, they might be playing a game of dodgeball with the furniture. Assailant comes from the Latin ad- meaning "at" and salire meaning "to leap." Leap at someone and you're an assailant — someone who attacks. You'll usually hear this word when lawyers or police are talking about attacks, because most people use its synonym attacker in casual conversation. Have you ever been attacked by ants, looking down to see your foot covered in them? Think of the word ant when you spell the word assailant to remember its ending.

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Vocabulary lists containing assailant

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.

Secret Service agents tackled the alleged assailant before he was able to reach the ballroom where the gala was taking place.

From Barron's • Apr. 30, 2026

But Megan didn’t name him as her assailant at first.

From Salon • Apr. 30, 2026

Shomrim—a Jewish community security organization—said its members stopped the assailant and held him until the police arrived.

From The Wall Street Journal • Apr. 29, 2026

The assailant, she told investigators, offered to drive her to a nearby pay phone.

From Los Angeles Times • Apr. 15, 2026

Marco crumples as though punched in the stomach by an invisible assailant.

From "The Night Circus" by Erin Morgenstern

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