tarnishing
Definitions
The process of losing luster or discoloration of a metal surface due to oxidation or chemical reaction.
The act of damaging or diminishing the reputation, character, or integrity of someone or something.
Examples
The constant exposure to salt air is tarnishing the brass fixtures on the boat.
His reckless behavior is tarnishing the reputation that his family spent decades building.
Synonyms
staining discoloring sullying marring blemishing degrading besmirching
Antonyms
polishing cleansing brightening purifying enhancing glorifying restoring