in ‧ formed /ɪnˈfɔːmd $ -ɔːr-/ BrE AmE adjective
[ Word Family: noun : ↑ informant , ↑ information , ↑ informer , ↑ misinformation , ↑ disinformation ; verb : ↑ inform , ↑ misinform ; adjective : ↑ informative ≠ UNINFORMATIVE , ↑ informed ≠ ↑ uninformed ; adverb : ↑ informatively ]
1 . having a lot of knowledge or information about a particular subject or situation:
Informed sources said it was likely that the president would make a televised statement.
well-informed/ill-informed
I became reasonably well-informed about the subject.
2 . informed decision/choice/judgment etc a decision etc that is based on knowledge of a subject or situation:
Good information is essential if people are to make informed choices about services.
3 . keep somebody informed to give someone the latest news and details about a situation:
Please keep me fully informed of any developments.