in ‧ for ‧ ma ‧ tive /ɪnˈfɔːmətɪv $ -ɔːr-/ BrE AmE adjective
[ Word Family: noun : ↑ informant , ↑ information , ↑ informer , ↑ misinformation , ↑ disinformation ; verb : ↑ inform , ↑ misinform ; adjective : ↑ informative ≠ UNINFORMATIVE , ↑ informed ≠ ↑ uninformed ; adverb : ↑ informatively ]
providing many useful facts or ideas:
an informative and entertaining book
—informatively adverb