instructive
1. [ adjective ] (education) serving to instruct of enlighten or inform
Synonyms: informative
Related terms: uninstructive educational doctrinaire expository explanatory interpretative didactic preachy clarifying ostensive educative demonstrative informative
2. [ adjective ] tending to increase knowledge or dissipate ignorance
Synonyms: informative enlightening
Examples:

"an enlightening glimpse of government in action"

Related terms: unenlightening
Similar spelling:   instructively
  instruct
  instructed
  instinctive
  instruction
  institute
  instructress
  instructions
  instinctively
  instructor
  instructional
  inactive
  instigative
  inactivate
  instrumentate
  instrument
  instructorship
  inactiveness
  institution
  instinct
  instrumental
  instauration
  inextricable
  inactivity
  institutional