LETHAL definition: of, relating to, or causing death; deadly; fatal: a lethal dose. See examples of lethal used in a sentence. A substance that is lethal can kill people or animals.

Understanding the Context

...a lethal dose of sleeping pills. ...chemicals lethal to fish and aquatic mammals. lethal applies to something that is bound to cause death or exists for the destruction of life. Add to word list able to cause or causing death; extremely dangerous: a lethal weapon (Definition of lethal from the Cambridge Academic Content Dictionary © Cambridge University Press) Pretty Lethal streaming on March 25.An action-packed thriller where five ballerinas, on their way to a prestigious dance competition, are barely...

Key Insights

Lethal refers to anything dangerous enough to cause death. The cobra's venom is so lethal that if you get bitten and can't find the antidote, it's lights out forever. Poisonous spiders, guns, knives, and radiation — all of these things can be lethal because they have the ability to kill. 1. Causing or capable of causing death: a lethal weapon.

Final Thoughts

See Synonyms at fatal. 2. Extremely harmful; devastating: accusations lethal to the candidate's image. Lethal. 2,885 likes 22 talking about this. Welcome to the "Official" page for the band Lethal from Kentucky, USA.