contaminate - definition and synonyms

verb [transitive] 

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/kənˈtæmɪneɪt/
present tense
I/you/we/theycontaminate
he/she/itcontaminates
present participlecontaminating
past tensecontaminated
past participlecontaminated
  1. 2
    to affect something or someone in a negative way

    Children are becoming contaminated by the prevailing cynicism of the age.