1. to damage someone's reputation by making false or unfair statements about them
Usage: formal
2. to make something dirty or stained
Usage: literary

Examples

• The scandal besmirched the politician's previously clean record.
• False accusations besmirched her good name in the community.
• He refused to besmirch his opponent's character during the campaign.
• The muddy boots besmirched the white carpet.
• Critics tried to besmirch the author's literary achievements.
• She would not let gossip besmirch her family's honor.
• The oil spill besmirched the pristine coastline.