осведомлённый означает в английский

aware▼(having knowledge of something)
adjective
[UK: ə.ˈweə(r)] [US: ə.ˈwer]

cognizant▼(aware)
adjective
[UK: ˈkɒɡ.nɪ.zənt] [US: ˈkɑːɡ.nə.zənt]

conversant▼(familiar)
adjective
[UK: kən.ˈvɜːsnt] [US: kən.ˈvɝː.sənt]

knowledgeable▼(well informed)
adjective
[UK: ˈnɒ.lɪ.dʒəb.l̩] [US: ˈnɑː.lə.dʒəb.l̩]

privy▼(with knowledge of; party to; let in on)
adjective
[UK: ˈprɪ.vi] [US: ˈprɪ.vi]

well-informed▼(furnished with knowledge)
adjective
[UK: ˌwel ɪn.ˈfɔːmd] [US: ˌwel ɪn.ˈfɔːrmd]