contaminate
[verb]
Synonyms: pollute, adulterate, befoul, corrupt, defile, infect, stain, taint, tarnish

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Antonyms: purify
Contrasted words: better, elevate, improve
Related Words: corrupt, debase, debauch, deprave, pervert, vitiate, harm, injure, spoil, infect, poison, dirty, soil

[TahlilGaran] English Synonym Dictionary ▲

con‧tam‧i‧nate /kənˈtæməneɪt, kənˈtæmɪneɪt/ verb [transitive]
[Date: 1400-1500; Language: Latin; Origin: past participle of contaminare, from contamen 'contact']

1. to make a place or substance dirty or harmful by putting something such as chemicals or poison in it:
Drinking water supplies are believed to have been contaminated.

2. to influence something in a way that has a bad effect:
He claims the poster ads have ‘contaminated Berlin’s streets’.
—contamination /kənˌtæməˈneɪʃən, kənˌtæmɪˈneɪʃən/ noun [uncountable]:
radioactive contamination

[TahlilGaran] Dictionary of Contemporary English ▲