instructive
3.instructive especially excessively.
4.This is an instructive book
5.a short pithy instructive saying.
6.The lecture was instructive and interesting.
7.A terse, witty, instructive saying; a maxim
8.The story is not interesting nor instructive.
9.Those little hints were very instructive to me.
10.This film is at once interesting and instructive.
