WordWeb Online

1. Touched by rot or decay
   "tainted bacon";
   - corrupt [archaic]

1. (of someone's image or good reputation) damage, place under suspicion or cast doubt upon
   "taint someone's reputation";
   - defile, sully, corrupt, cloud, tarnish, soil, stain
    
2. Contaminate with a disease or microorganism
   - infect

See also: stale

Type of: contaminate, deflower, foul, impair, mar, pollute, spoil, vitiate

Antonym: disinfect

Encyclopedia: Tainted