Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Instructive \In*struct"ive\, a. [Cf. F. instructif.]
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.
Douglas Harper's Etymology Dictionary
1610s, from instruct + -ive. Related: Instructively; instructiveness.
Wiktionary
a. conveying knowledge, information or instruction. n. (context linguistics English) A case in the Finnish language. It expresses the means or the instrument used to perform an action.
WordNet
adj. serving to instruct of enlighten or inform [syn: informative] [ant: uninstructive]
tending to increase knowledge or dissipate ignorance; "an enlightening glimpse of government in action" [syn: enlightening, informative] [ant: unenlightening]
Wikipedia
Usage examples of "instructive".
Particularly instructive and well reported is the instance of bear cult of the Ainu of Japan, a Caucasoid race that entered and settled Japan centuries earlier than the Mongoloid Japanese, and are confined today to the northern islands, Hokkaido and Sakhalin -- the latter now, of course, in Russian hands.
Miss Arabella, her stitchery lying neglected on the table before, sat Miss Sophia, reading aloud from another volume of this instructive periodical.
These contrasts are especially instructive in the case of the notable kingdom of Benin, not far from the coast of modern Nigeria.
Even now it remains relatively neglected as a topic of academic interest, which is a pity because few dialects provide a more instructive example of what happens to languages when they exist in isolation.
Agents, therefore, are required to move swiftly, leaving vapor trails deliberately designed to appear harmlessly flakey to Behind-Time Species, while at the same time instructive to and supportive of A-Head-Time Futiques.
I feel it was rather hard upon Gorki to have spoken of him in the same lecture, but the contrast between the two is extremely instructive.
Several complete instruments have been found, which, although dating most likely from a period near the Christian era, are nevertheless sufficiently like the representations of ten centuries earlier to make them instructive as well as interesting.
Observing the eating habits of animals as different as cats, ladybugs, sharks, and dinosaurs like the tyrannosaur will be instructive.
In the case of the Pelopaeus, Fabre calls our attention to one of the most instructive physiological spectacles that can be imagined.
CHAPTER XXI AN AIR SCOUT FOR ZODANGA As I proceeded on my journey toward Zodanga many strange and interesting sights arrested my attention, and at the several farm houses where I stopped I learned a number of new and instructive things concerning the methods and manners of Barsoom.
The only case in which the higher ground has been taken on principle and maintained with consistency, by any but an individual here and there, is that of religious belief: a case instructive in many ways, and not least so as forming a most striking instance of the fallibility of what is called the moral sense: for the odium theologicum, in a sincere bigot, is one of the most unequivocal cases of moral feeling.
Nay, they are more so, because ancient history is little instructive, and truths are concealed in and symbolized by the legend and the myth.
It is also most instructive to compare--but I have not space here to enter on details--the evidence advanced by our best botanists on the question whether certain doubtful forms should be ranked as species or varieties, with the evidence from fertility adduced by different hybridisers, or by the same author, from experiments made during different years.
Since I desire, in this chapter, to say an instructive word or two about the silver mines, the reader may take this fair warning and skip, if he chooses.
The producers thought it would be instructive to explore how easily a faith-healer or guru could be created to bamboozle the public and the media.