The extreme investigators at How to Survive warn about deadly mistakes people make when handling poisonous mushrooms. Four officers injured in violent Sydney attack Astronauts exit spacecraft after ...

If you describe a person or their behaviour as deadly, you mean that they will do or say anything to get what they want, without caring about other people.

deadly, mortal, fatal, lethal mean causing or capable of causing death. deadly applies to an established or very likely cause of death.

Add to word list dangerous and able to kill: a deadly poison (Definition of deadly from the Cambridge Academic Content Dictionary © Cambridge University Press)

1. causing or tending to cause death; lethal. 2. aiming to kill or destroy; implacable: a deadly enemy. 3. like death. 4. excruciatingly boring. 5. excessive; inordinate: deadly haste.

Definition of deadly adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Synonyms: deathly, fatal, lethal, mortal, killer, more... Collocations: a deadly [virus, illness], a deadly attack on [Paris], the deadly attack on [Monday], more...

deadly, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

deadly, adj. & n. meanings, etymology and more | Oxford English Dictionary

DEADLY definition: causing or tending to cause death; fatal; lethal. See examples of deadly used in a sentence.

deadly (comparative deadlier or more deadly, superlative deadliest or most deadly) (obsolete, rare) Subject to death; mortal.