Blemish

v. flaw, deface, stain, impair; speak ill of

n. flaw, fault, defect

Blemish may refer to:A minor imperfection. For skin imperfection, see Acne vulgarisBlemish (album) a music album from David Sylvian released in 2003.
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Noun
1. a mark or flaw that spoils the appearance of something (especially on a person's body); "a facial blemish"
(synonym) defect, mar
(hypernym) appearance, visual aspect
(hyponym) birthmark, nevus
(derivation) deface, disfigure
Verb
1. mar or spoil the appearance of; "scars defaced her cheeks"; "The vandals disfigured the statue"
(synonym) deface, disfigure
(hypernym) mar, impair, spoil, deflower, vitiate
(hyponym) maul, mangle
(derivation) defect, mar
2. mar or impair with a flaw; "her face was blemished"
(synonym) spot
(hypernym) dirty, soil, begrime, grime, colly, bemire
(derivation) defect, mar
3. add a flaw or blemish to; make imperfect or defective
(synonym) flaw
(hypernym) damage
(derivation) defect, mar

(v. t.)
To tarnish, as reputation or character; to defame.
  

(v. t.)
To mark with deformity; to injure or impair, as anything which is well formed, or excellent; to mar, or make defective, either the body or mind.
  

(n.)
Any mark of deformity or injury, whether physical or moral; anything that diminishes beauty, or renders imperfect that which is otherwise well formed; that which impairs reputation.
  

An imperfection severe enough to be noticed but that should not cause any real impairment with respect to intended normal or reasonably foreseeable use (see also "defect," "imperfection" and "nonconformity").