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Synonyms

murderous

American  
[mur-der-uhs] / ˈmɜr dər əs /

adjective

  1. of the nature of or involving murder.

    a murderous deed.

  2. guilty of, bent on, or capable of murder.

  3. extremely difficult, dangerous, or unpleasant.

    murderous heat.
murderous British  
/ ˈmɜːdərəs /

adjective

  1. intending, capable of, or guilty of murder

  2. informal very dangerous, difficult, or unpleasant

    a murderous road
"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

Other Word Forms

  • murderously adverb
  • murderousness noun
  • nonmurderous adjective

Etymology

Origin of murderous

First recorded in 1525–35; murder + -ous

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.