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seamy

[see-mee] / ˈsi mi /
ADJECTIVE
corrupt, unwholesome
Synonyms
STRONGEST
disreputable disturbing nasty sordid unpleasant
WEAK
bad dark degraded disagreeable disappointing low rough squalid
Antonyms
STRONGEST
agreeable decent good great honorable pleasant pleasing reputable wonderful
WEAK
respectable upright wholesome

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.