AskDefine | Define benign

Dictionary Definition

benign adj
1 not dangerous to health; not recurrent or progressive (especially of a tumor) [ant: malignant]
2 pleasant and beneficial in nature or influence; "a benign smile"; "the benign sky"; "the benign influence of pure air" [syn: benignant] [ant: malign]
3 of disposition or manner; "the benign ruler of millions"; "benign intentions"

User Contributed Dictionary



  • /bɪˈnaɪn/, /bI"naIn/


  1. Kind; gentle; mild.
  2. Not posing any serious threat to health; not particularly aggressive or recurrent.



kind, gentle, mild
(medicine) not posing any serious threat to health

Extensive Definition

Benign (from the Latin roots bene- = "well" and -genus = "born"), a polyvalent term (refer benign), is employed with a specific denotation as a medical term in medical discourse to describe a mild and nonprogressive sickness. The term is most familiar as a description of a non-cancerous (non-malignant) tumor or neoplasm, but may also refer to other mild health conditions.
Uses of "benign" in oncology:
benign in Spanish: Benigno

Synonyms, Antonyms and Related Words

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