1. pollute, foul, contaminate, dirty, soil, begrime, grime, colly, bemire

usage: make impure; "The industrial wastes polluted the lake"

2. contaminate, change, alter, modify

usage: make radioactive by adding radioactive material; "Don't drink the water--it's contaminated"


1. contaminated (vs. uncontaminated), mercury-contaminated

usage: corrupted by contact or association; "contaminated evidence"

2. contaminated, polluted, impure (vs. pure)

usage: rendered unwholesome by contaminants and pollution; "had to boil the contaminated water"; "polluted lakes and streams"

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