instructive
UK: ɪnˈstrʌktɪv | US: ɪnˈstrʌktɪv
adj. providing useful knowledge or moral guidance; educational
adj. serving to explain or clarify
The word "instructive" derives from the Latin instructus, the past participle of instruere ("to build, arrange, teach"), combining in- ("into") and struere ("to pile, build"). The suffix -ive (from Latin -ivus) forms adjectives meaning "tending to" or "having the nature of." Thus, "instructive" literally means "having the nature of teaching" or "tending to build knowledge." The term evolved in Middle English via Old French instructif, retaining its core sense of imparting useful information.
The documentary was highly instructive, offering insights into climate change.
Her critique was constructive and instructive, helping me improve my writing.
The museum’s exhibits are both entertaining and instructive for visitors of all ages.
His failure proved instructive, teaching him valuable lessons about perseverance.
The book’s instructive diagrams made complex concepts easy to understand.