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

murderousness

2 of 2

noun

mur·​der·​ous·​ness
plural -es
: the quality or state of being murderous

Examples of murderous in a Sentence

Adjective I can't stand this murderous heat. The lead runner set a murderous pace.
Recent Examples on the Web
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Adjective
Discordant keys fly like daggers while snares trip over bass thuds; there’s a jazzy piano interlude, and then a murderous hard-rock siege razes the mix to the ground. — Kieran Press-Reynolds, Pitchfork, 29 Oct. 2026 Gino’s traditional family Christmas Eve turns into a bloody battle for survival when his long-dead grandma drops by and goes on a murderous rampage. — Rachel Labonte, Entertainment Weekly, 29 Oct. 2026 Unfortunately for Luca, the camera is inhabited by a demon that forces him to continue a murderous ritual started decades ago by a satanist serial killer (the titular Madison). — Todd Spangler, Variety, 26 Oct. 2026 By the third episode, murderous Jason begins to more prominently feature in episodes, and the gory deaths begin, as a swarm of innocent hippies ignore warnings and are drawn into the camp, like lambs to the slaughter. — Ashley Belanger, ArsTechnica, 23 Oct. 2026 See All Example Sentences for murderous

Word History

First Known Use

Adjective

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 1 Nov. 2026.

Kids Definition

murderous

adjective
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
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