Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “lethal”

See all translations

lethal

adjective uk   /ˈliː.θəl/ us  
C2 able to cause or causing death; extremely dangerous: Three minutes after the fire started, the house was full of lethal fumes. In the car the police found guns, knives, and other lethal weapons (= weapons that can kill). A 59-year-old man was executed by lethal injection (= by having a poisonous substance put into his body) this morning. informal That combination of tiredness and alcohol is lethal (= has a very bad effect).
lethally
adverb uk   /-i/ us  
Translations of “lethal”
in Korean 치명적인…
in Arabic قاتِل…
in French mortel…
in Turkish öldürücü…
in Italian letale…
in Chinese (Traditional) 致命的, 極其危險的…
in Russian смертельный…
in Polish śmiertelny, śmiercionośny…
in Spanish mortal, letal…
in Portuguese letal, fatal…
in German tödlich…
in Catalan letal…
in Japanese 死を招く…
in Chinese (Simplified) 致命的, 极其危险的…
(Definition of lethal from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of lethal?
Add Cambridge dictionaries to your browser to your website

Definitions of “lethal” in other dictionaries

Word of the Day

exercise

physical activity that you do to make your body strong and healthy

Word of the Day

Byronic, Orwellian and Darwinian: adjectives from names.

by Liz Walter,
April 15, 2015
Becoming an adjective is a strange kind of memorial, but it is often a sign of a person having had real influence on the world. Science is full of examples, from Hippocrates, the Greek medic born around 460 BC, who gave his name to the Hippocratic Oath still used by doctors today,

Read More 

bio-inspiration noun

April 13, 2015
the adoption of patterns and structures found in nature for the purposes of engineering, manufacturing, science, etc. The MIT researchers actually aren’t the only robotics team to turn to cheetahs for bio-inspiration.

Read More