deadly
dead
ˈdɛd
ded
ly
li
li
dearly

Definition & Meaning of "deadly"in English

deadly
01

able to cause death 

deadly definition and meaning
Grammatical Information
Composition
Simple
qualitative
Superlative
deadliest
Comparative
deadlier
gradable
Examples
The explosion had deadly consequences. 
02

pertaining to a device or weapon designed to kill 

Examples
The assassin carried a deadly dagger. 
03

extremely harmful or destructive 

Examples
Smoking is deadly to health. 
04

extremely poisonous or venomous 

Examples
The spider is deadly to humans. 
05

causing spiritual death or loss of divine grace 

Examples
Pride is considered a deadly sin in many religions. 
06

(of a disease) progressing rapidly and violently 

Examples
Deadly outbreaks often overwhelm local hospitals. 
deadly
01

used to emphasize a quality or degree 

Informal
Grammatical Information
Examples
She was deadly serious about quitting her job. 
02

resembling or appearing as if dead 

Examples
The animal lay deadly still on the forest floor. 
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