Pronunciation: /ˈliː.θəl/
adjective causing or capable of causing death; deadly
A1 The poison was lethal.
A2 The snake's venom is lethal to humans.
B1 The new virus strain is highly lethal and spreading rapidly.
B2 The assassin used a lethal weapon to carry out the hit.
C1 The chemical compound is known to be lethal in high concentrations.
C2 The military developed a lethal strategy to defeat the enemy forces.
formal The poison was so lethal that even a small amount could be fatal.
informal That snake's venom is no joke, it's lethal!
slang His punch is lethal, you don't want to mess with him.
figurative His words were lethal, cutting through her defenses effortlessly.
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