Dictionary.com
Thesaurus.com
Synonyms

overkill

American  
[oh-ver-kil] / ˈoʊ vərˌkɪl /

noun

  1. the capacity of a nation to destroy, by nuclear weapons, more of an enemy than would be necessary for a military victory.

  2. an instance of such destruction.

  3. an excess of what is required or suitable, as because of zeal or misjudgment.


overkill British  
/ ˈəʊvəˌkɪl /

noun

  1. the capability to deploy more weapons, esp nuclear weapons, than is necessary to ensure military advantage

  2. any capacity or treatment that is greater than that required or appropriate

"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 overkill

An Americanism dating back to 1945–50; over- + kill 1

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.

Calling it a “surgical procedure” is almost overkill.

From Slate • Apr. 18, 2026

The overkill hits its nadir when the Bride repeatedly wails the survivors’ hashtag, “Me too!”

From Los Angeles Times • Mar. 4, 2026

For me, it happens often enough that this approach feels less like overkill and more like mercy.

From Salon • Jan. 27, 2026

But I would agree with Williams that it was probably overkill.

From MarketWatch • Jan. 16, 2026

But he was not into overkill, and there was nothing bloodthirsty about his hunting habits.

From "The Milagro Beanfield War" by John Nichols

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "overkill" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com