Benign

having a kindly disposition; gracious:
a benign king.
showing or expressive of gentleness or kindness:
a benign smile.
favorable; propitious:
a series of benign omens and configurations in the heavens.
(of weather) salubrious; healthful; pleasant or beneficial.
Pathology. not malignant; self-limiting.
Contemporary Examples

Where Were the Doctors to Testify at Roger Clemens’s Perjury Trial? Kent Sepkowitz June 19, 2012
HPV Vaccine’s Tricky Ethics Sharon Begley September 13, 2011
Did Tamerlan ‘Self-Radicalize’? Richard Barrett April 24, 2013
How to Destroy Your Headaches Dr. Anand Veeravagu, MD, Tej Azad June 22, 2014
Why Steele Should Stay Tunku Varadarajan July 4, 2010

Historical Examples

A Family of Noblemen Mikhal Saltykov
Female Scripture Biographies, Vol. I Francis Augustus Cox
Drum Taps Walt Whitman
Howards End E. M. Forster
Man and Wife Wilkie Collins

adjective
showing kindliness; genial
(of soil, climate, etc) mild; gentle
favourable; propitious
(pathol) (of a tumour, etc) not threatening to life or health; not malignant
adj.
benign
(bĭ-nīn’)
Not life-threatening or severe, and likely to respond to treatment, as a tumor that is not malignant. Compare malignant.
benign [(bi-neyen)]

Note: The term benign is used when describing tumors or growths that do not threaten the health of an individual.