Synonyms for Illustrative (same or very similar meaning)
WordNet sense 1 (serving to demonstrate):
demonstrativeWordNet sense 2 (serving to instruct of enlighten or inform):
informative, instructiveWordNet sense 3 (clarifying by use of examples):
exemplifyingWordNet sense 4 (providing or conveying information):
informatoryFrom the ODE community, based on WordNetadd/edit