murderous

adjective

mur·​der·​ous ˈmər-d(ə-)rəs How to pronounce murderous (audio)
Synonyms of murderousnext
1
a
: having the purpose or capability of murder
a murderous machine gun
b
: characterized by or causing murder or bloodshed
a murderous dictator
2
: having the ability or power to overwhelm : devastating
murderous heat
murderously adverb
murderousness noun

Examples of murderous in a Sentence

I can't stand this murderous heat. The lead runner set a murderous pace.
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.
As the curse causes the infected villagers to become violently murderous, police officer Jong-goo (Kwak Do-won) tries to get to the bottom of it, personally motivated by his daughter's own transformation. Kevin Jacobsen, Entertainment Weekly, 21 Feb. 2026 Scientists have long suspected that active supermassive black holes can kill their own host galaxies, but new research suggests these cosmic titans are more like serial killers that can extend their murderous rampage across many light-years and destroy neighboring galaxies, too. Robert Lea, Space.com, 20 Feb. 2026 Adding further to the overall tension is the looming presence of a murderous knight in full armor roaming the countryside. Frank Scheck, HollywoodReporter, 19 Feb. 2026 Performers who flirt with murderous rhetoric and ideologies hardly make ideal mascots for the pro-Palestine movement, or for anyone else who advocates to end, not intensify, violence in the Middle East. Spencer Kornhaber, The Atlantic, 11 Feb. 2026 See All Example Sentences for murderous

Word History

First Known Use

1535, in the meaning defined at sense 1a

Time Traveler
The first known use of murderous was in 1535

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Cite this Entry

“Murderous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/murderous. Accessed 26 Feb. 2026.

Kids Definition

murderous

adjective
mur·​der·​ous ˈmərd-(ə-)rəs How to pronounce murderous (audio)
1
: intending or capable of causing murder or bloodshed : deadly
murderous machine-gun fire
2
: very difficult to bear or withstand
a murderous glance
murderous heat
murderously adverb

More from Merriam-Webster on murderous

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