instructive

From instruct +‎ -ive.

• IPA^(key): /ɪnˈstɹʌktɪv/

• Audio (Southern England)

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instructive (comparative more instructive, superlative most instructive)

1. Conveying knowledge, information or instruction.

   Synonyms: didactic, educative, informative, informatory

   Well, that was an instructive lesson.

   • 2021 January 29, John Herrman, “Everything’s a Joke Until It’s Not”, in The New York Times‎:

     Some commentators have suggested that the activity represented by WallStreetBets and Trumpism are part of the same populist, anti-elite phenomenon, but if Trumpism in general is instructive at all here, it’s as a reminder that self-described anti-elite movements can, in fact, turn out to be much more complicated than that.

• instructive case

instructive (plural instructives)

1. (linguistics) A case in the Finnish and Estonian languages. It expresses the means or the instrument used to perform an action.

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instructive

1. feminine singular of instructif