Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “scum”

See all translations

scum

noun uk   /skʌm/ us  

scum noun (DIRT)

[U] a layer of unpleasant or unwanted material that has formed on the top of a liquid: The lake near the factory was covered with grey, foul-smelling scum.

scum noun (IMMORAL PERSON)

[C or U] ( plural scum) informal a very bad or immoral person or group of people: People who organize dog fights are scum in my opinion! His boss treats him like scum (= very badly). racist scum
scummy
adjective uk   /ˈskʌm.i/ us  
(Definition of scum from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of scum?
Add Cambridge dictionaries to your browser to your website

Definitions of “scum” in other dictionaries

Word of the Day

christmassy

typical of Christmas, or happy because it is Christmas

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

cinderella surgery noun

December 15, 2014
cosmetic surgery to the feet We have all heard of people having nose jobs, boob jobs and liposuction – but now a new trend growing in popularity in America: Cinderella surgery.

Read More