deadly

[ded-lee] / ˈdɛd li /

ADJECTIVE

causing end of life

Synonyms

STRONGEST

bloody carcinogenic cruel dangerous destructive fatal harmful lethal malignant mortal murderous noxious pernicious poisonous savage suicidal toxic violent virulent

WEAK

baleful baneful bloodthirsty cannibalistic death-dealing deathly deleterious destroying grim homicidal injurious internecine killing mortiferous pestiferous pestilent pestilential ruthless slaying unrelenting venomous

Antonyms

STRONGEST

benign calm gentle harmless healthy helpful kind life-giving nice nonpoisonous wholesome

WEAK

animating energizing healthful invigorating lively

ADJECTIVE

ghostly

Synonyms

STRONGEST

ghastly

WEAK

ashen corpselike dead deadened deathful deathlike deathly pallid wan white

Antonyms

WEAK

animating energizing harmless healthful healthy invigorating lively wholesome

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.

States neighbouring the Democratic Republic of Congo are at great danger from Ebola and should act immediately to counter the deadly virus, the head of the World Health Organisation said on Monday.

From Barron's • May 25, 2026

Nearly 1,600 people were charged with crimes associated with the riot, including about 175 charged with using a deadly or dangerous weapon or causing serious bodily injury to an officer, according to DoJ figures.

From BBC • May 22, 2026

The ongoing outbreak spread quickly before it was officially identified as a deadly Ebola strain by the WHO on May 15.

From The Wall Street Journal • May 22, 2026

Ebola is a deadly viral disease spread through direct contact with bodily fluids.

From Barron's • May 22, 2026

Humans now had a dependable source of light and warmth, and a deadly weapon against prowling lions.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

deadly

Example Sentences

Related Words