Tarnish
Definition 1 of 2
Pro Tip 1/3
Figurative Use
Used metaphorically to describe harm done to intangible things, like reputations. A single scandal may tarnish a politician's entire career.
Pro Tip 2/3
Negative Connotation
Has a negative feel, implying harm or reduced quality that could have been avoided. He did nothing wrong, but gossip tarnished his social standing.
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Irreversible Change
Often suggests a permanent or hard-to-reverse effect. The once-beloved hero's actions tarnished his legacy forever.