WordWeb Online

1. Tending to increase knowledge or dissipate ignorance
   - enlightening, illuminating
    
2. Serving to instruct or enlighten or inform
   - instructive
    
3. Providing or conveying information
   - informatory

See also: advisory, clarifying, consultative, consultatory, consultive, demonstrative, didactic, didactical, doctrinaire, educational, educative, elucidative, exemplifying, explanatory, expositive, expository, illustrative, inform, informatively, interpretative, interpretive, newsy, ostensive, preachy, revealing, telling, telltale

Antonym: uninformative

Encyclopedia: Informative