From Longman Dictionary of Contemporary Englishinstructivein‧struc‧tive /ɪnˈstrʌktɪv/AWL adjectiveINFORMATIONproviding a lot of usefulinformationSYN informative
Thank you, that was very instructive.
an instructive comparisonExamples from the Corpusinstructive• Lectures must be interesting as well as instructive.• The books are designed to be both entertaining and instructive.• The book is filled with instructivedrawings.