deadly

[ ded-lee ]

/ ˈdɛd li /

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See synonyms for: deadly / deadliest on Thesaurus.com

adjective, dead·li·er, dead·li·est.

causing or tending to cause death; fatal; lethal: a deadly poison.

aiming to kill or destroy; implacable: a deadly enemy.

like death: a deadly pallor.

excruciatingly boring: The dinner party was absolutely deadly.

excessive; inordinate: deadly haste.

extremely accurate: Annie Oakley was a deadly shot.

adverb

in a manner resembling or suggesting death: deadly pale.

excessively; completely: deadly dull.

OTHER WORDS FOR deadly

4 dull, tedious, dreary.

See synonyms for deadly on Thesaurus.com

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Origin of deadly

First recorded before 900; Middle English deedli(ch), Old English dēadlīce; see dead, -ly

synonym study for deadly

1. See fatal.

OTHER WORDS FROM deadly

dead·li·ness, nounnon·dead·ly, adjective

WORDS THAT MAY BE CONFUSED WITH deadly

deadly , deathly

How to use deadly in a sentence

It is often the least visible but sometimes deadliest of injuries: traumatic brain injury (TBI).
Understanding Tracy Morgan’s Traumatic Brain Injury|Jean Kim|November 20, 2014|DAILY BEAST
The country is also sixth deadliest when it comes to the gender-motivated killing of women.
The Shocking Death of Miss Honduras|Romina Ruiz-Goiriena|November 19, 2014|DAILY BEAST
Melanoma, the deadliest form of skin cancer, has seen a 200 percent increase in cases since 1973.
Is the Facekini the Future of Beachwear?|Justin Jones|August 23, 2014|DAILY BEAST
It was the deadliest single bomb on London of the war—161 people died.
Life Under Air Strikes: Children Under Fire Will Never Forget — or Forgive|Clive Irving|August 3, 2014|DAILY BEAST

The dispute over the rockets comes as the fighting in Gaza entered its deadliest day.
Did the United Nations Give Rockets to Hamas?|Josh Rogin|July 20, 2014|DAILY BEAST
He, like all the other natives here, seems to hate Europeans as though they were his deadliest enemies.
The Red Year|Louis Tracy
And he must have known that he was making himself quite at home in the house of his deadliest enemy.
The Weight of the Crown|Fred M. White
He knows the deadliest of all wearinesses—the weariness of the soul.
The New Society|Walther Rathenau
Excess of starch, so my experience has convinced me, is the deadliest of all dietetic errors.
The Book of Life: Vol. I Mind and Body; Vol. II Love and Society|Upton Sinclair
He started up, and found one of the deadliest serpents of the country coiled up at his feet.
The Life of Horatio Lord Nelson|Robert Southey

British Dictionary definitions for deadly

deadly

/ (ˈdɛdlɪ) /

adjective -lier or -liest

likely to cause deathdeadly poison; deadly combat

informal extremely boring

adverb, adjective

like death in appearance or certaintydeadly pale; a deadly sleep

Derived forms of deadly

deadliness, noun

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

deadly

OTHER WORDS FOR deadly

Origin of deadly

synonym study for deadly

OTHER WORDS FROM deadly

WORDS THAT MAY BE CONFUSED WITH deadly

Words related to deadly

How to use deadly in a sentence

British Dictionary definitions for deadly

Derived forms of deadly