I. (ˈ)kō|insə̇dənt, -ˌdent adjective
Etymology: French coïncident, from Middle French, from coïncider + -ent
: marked by or showing coincidence:
a. : occurring or operating at the same time : concomitant , attending
hand weaves and their coincident expense — New Yorker
b. : occupying the same space : having the same position, direction, or setting
the culture areas … would be essentially coincident with language areas — Harry Hoijer
c. : having accordant characteristics or nature : harmonious
they had a sincere affection for each other and coincident opinions on the proper conduct of life — A.T.Quiller-Couch
Synonyms: see contemporary
II. noun
( -s )
archaic : a coincident thing or event
III. noun
or coincident indicator
: an economic indicator (as level of personal income or of retail sales) that more often than not correlates directly with the state of the economy