"informative" in the adjective sense
1. enlightening, informative, illuminating
tending to increase knowledge or dissipate ignorance
"an enlightening glimpse of government in action"
"an illuminating lecture"
2. instructive, informative
serving to instruct or enlighten or inform
3. informative, informatory
providing or conveying information
Source: WordNet® (An amazing lexical database of English)
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