Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

deadly

adverb
 
 
/ˈded.li/

Definition

C1 completely or extremely: I thought she was joking but she was deadly serious.Very and extremeComplete and wholeIntensifying expressions
(Definition of deadly adverb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“deadly” in other dictionaries

Word of the Day

a cloud on the horizon

something which threatens to cause problems or unhappiness in the future

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More