What does besmirch mean?
Besmirch is a formal English verb meaning to damage or tarnish something's good name — most often a person's reputation, honour, or character. To say a rumour besmirches someone is to say it soils their standing as if by smearing dirt across a clean surface. The word can also be used literally to mean covering something in grime or filth, though this sense has become uncommon. Besmirch carries a distinctly elevated, almost old-fashioned tone: it appears more often in journalism, political rhetoric, and literature than in casual speech. Typical collocations include 'besmirch someone's reputation', 'besmirch someone's good name', and 'besmirch one's honour'. It derives from the prefix be- plus smirch, meaning to smear or stain, and entered English in the early seventeenth century. Its connotation is always negative — no one ever besmirches anything for the better — which makes it a precise and forceful choice when describing attacks on character or integrity.
verbTo damage or tarnish someone's reputation; to sully or make dirty, especially something once clean or honourable.
- To damage or tarnish someone's reputation.
- To soil or stain something physically (now rare).
"The journalist refused to let a single false claim besmirch her hard-earned reputation."
"The retired judge spent decades building an impeccable record, and nothing would besmirch it now."
"Mud from the trail besmirched his once-white trousers."
It's the word you reach for when a scandal threatens to drag a spotless name through the mud — literally 'to smear all over'.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of besmirch
Besmirch was formed in early seventeenth-century English from the prefix be-, used here to intensify, plus smirch, a Middle English verb meaning to smear or stain. Smirch itself likely descends from Old French esmorcier, related to words meaning to blacken or defile. Cognates include besmear and other be-prefixed verbs of soiling such as begrime and bemire, which follow the same pattern of adding be- to a root meaning 'dirty'.
Related word forms
How besmirch is actually used
Formal and somewhat literary in register. The dominant modern sense is figurative — attacking a reputation rather than making something physically dirty. Often used in legal, political, and journalistic contexts.
Easily confused with besmirch
'Besmear' means literally to cover with a smeared substance, while 'besmirch' usually refers figuratively to damaging a reputation.