Instructive
Pronunciation : In*struct"ive
Part of Speech : a.
Etymology : [Cf. F. instructif.]
Definition : Defn: Conveying knowledge; serving to instruct or inform; as, experience furnishes very instructive lessons. Addison. In various talk the instructive hours they past. Pope. -- In*struct"ive*ly, adv. -- In*struct"ive*ness, n. The pregnant instructiveness of the Scripture. Boyle.
Source : Webster's Unabridged Dictionary, 1913