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1. A filmy or frothy layer of matter that forms on the surface of a liquid or body of water or on a hard surface.
2. The refuse or dross of molten metals.
3. Refuse or worthless matter.
4. Slang One, such as a person or an element of society, that is regarded as despicable or worthless.
v. scummed, scum·ming, scums
To remove the scum from.
To become covered with scum.

[Middle English, from Middle Dutch schūm; see (s)keu- in Indo-European roots.]

scum′mer n.
scum′mi·ly adv.
scum′mi·ness n.
scum′my adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


adj, -mier or -miest
1. of, resembling, consisting of, or covered with scum
2. dirty, unpleasant, or nasty
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈskʌm i)

adj. -mi•er, -mi•est.
1. consisting of or having scum.
2. despicable; contemptible.
scum′mi•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.scummy - of the most contemptible kindscummy - of the most contemptible kind; "abject cowardice"; "a low stunt to pull"; "a low-down sneak"; "his miserable treatment of his family"; "You miserable skunk!"; "a scummy rabble"; "a scurvy trick"
contemptible - deserving of contempt or scorn
2.scummy - covered with scum; "the scummy surface of the polluted pond"
dirty, soiled, unclean - soiled or likely to soil with dirt or grime; "dirty unswept sidewalks"; "a child in dirty overalls"; "dirty slums"; "piles of dirty dishes"; "put his dirty feet on the clean sheet"; "wore an unclean shirt"; "mining is a dirty job"; "Cinderella did the dirty work while her sisters preened themselves"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


[ˈskʌmɪ] ADJ
1. [liquid] → lleno de espuma; [pond] → cubierto de verdín
2.canallesco, vil
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
References in classic literature ?
Some half-hour of this work, and Riderhood unshipped his sculls, stood holding on to a barge, and hand over hand long-wise along the barge's side gradually worked his boat under her head into a secret little nook of scummy water.
But still it's true that an under-belly of Britons, the scummy ring round society's bath, continue to duck and dive from their responsibilities.
"You are nothing more than a scummy little tabloid journalist.
They've been bitten by the film bug since releasing their short film, Scummy Man, and they haven't ruled out making their own films in the future.
WHY doesn't Britney Spears take her songs, her scummy outfits and her brain-dead minders and shove off back to America where she belongs?
An insider said: "You can imagine what will happen when Gail finds out her son has got married to the girl she sees as a scummy neighbour.
Don't you dare be sick on me, don't you dare - you dirty scummy boy."
This version sees rival families (usually one posh, one scummy) trying to persuade each other that their holiday tastes are better than the other's.
It wasn't long before the plummy natural blonde and the scummy bottle blonde were at daggers drawn.
THEY'RE scummy and they're trashy, two boys and one's a lassie, their mammy's van's so classy, the Adams family.
But when he falls into the scummy moat trying to grab a golden medallion, he is suddenly whisked back in time to the real Middle Ages.
Gda Glennon later testified he saw graffiti scratched on McDonnell's cell wall including: "Moran scummy nacker" and "Moran scum", which the prosecution claimed referred to Christopher Moran.