Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “viper”

viper

noun [C]     /ˈvaɪ.pər/ US  /-pɚ/
a small poisonous snake Reptile and amphibian names literary a very unpleasant person who you cannot trust : When I started my new job , I didn't realize that I was walking into a nest of vipers.Unpleasant people in generalUnpleasant men
(Definition of viper noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of viper

Definitions of “viper” in other dictionaries

Word of the Day

prenuptial agreement

an official document signed by two people before they get married that says what will happen to their possessions and/or children if they divorce (= officially stop being married)

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