adj. 25B6; adjective INFORMATIVE, instructional, informational, illuminating, enlightening, explanatory; educational, educative, edifying, didactic, pedagogic, heuristic; improving, moralistic, homiletic; useful, helpful.
INSTRUCTIVE
Meaning of INSTRUCTIVE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012