indolent

adjectives

disinclined to work or exertion
"faineant kings under whose rule the country languished"; "an indolent hanger-on"; "too lazy to wash the dishes"; "shiftless idle youth"; "slothful employees"; "the unemployed are not necessarily work-shy"
is derived from
(of tumors, e.g.) slow to heal or develop and usually painless
"an indolent ulcer"; "leprosy is an indolent infectious disease"
is similar to
(pathology) not progressing or increasing; or progressing slowly
domain category
the branch of medical science that studies the causes and nature and effects of diseases