deadly
4 ENTRIES FOUND:
deadlier;
deadliest
deadlier;
deadliest
Britannica Dictionary definition of DEADLY
[or more deadly; most deadly]
1
:
causing or able to cause death
—
compare deathly
-
deadly weapons
-
the world's most deadly snake
-
a more deadly form of the disease
-
They launched a deadly attack.
-
Officers are allowed to use deadly force if necessary.
2
:
extremely accurate and effective
-
She shoots with deadly accuracy.
-
a basketball player with deadly aim
3
always used before a noun
:
extreme or complete
-
A deadly silence followed his question.
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The two gang leaders are deadly enemies.
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He spoke with deadly seriousness.
4
informal
:
very boring
-
The lecture was pretty deadly.
— deadliness
noun [noncount]-
the deadliness of the disease
deadly
describes something that is very dangerous and likely or able to cause death.
-
deadly diseases
-
deadly weapons
mortal
describes a wound or injury that has already caused death or will soon cause death.
-
She received a mortal wound and died the next day.
fatal
describes something that has actually caused a person's death.
-
The disease is sometimes fatal.
-
The wounds later proved to be fatal.
lethal
usually describes something like a poison that is used for the purpose of destroying life.
2
deadly
/ˈdɛdli/
adverb
deadlier;
deadliest
2
deadly
/ˈdɛdli/
adverb
deadlier;
deadliest
Britannica Dictionary definition of DEADLY
[or more deadly; most deadly]
:
extremely or completely
-
He's deadly [=dead] serious about finding another job.
-
a deadly boring/dull meeting
