lethal

word

/ˈɫiθəɫ/
LEE-thuhl
/lˈiːθəl/
LEE-thuhl

Definition

Able to cause death; something so dangerous or harmful that it can kill.

Usage & Nuances

'Lethal' is formal or scientific; often used in 'lethal weapon', 'lethal dose', or 'lethal injection'. It is stronger than 'dangerous', specifically meaning able to cause death, not just harm.

Example Sentences

This snake's bite can be lethal to humans.

basic

A lethal dose of this medicine can kill you.

basic

Some chemicals are lethal if not handled carefully.

basic

That was a lethal mistake; the company never recovered from it.

natural

He has a lethal sense of humor that catches everyone off guard.

natural

Be careful—those mushrooms can be lethal if you eat them by mistake.

natural