underrättad bedeutet auf Englisch

advised▼(informed, appraised or made aware)
adjective
[UK: əd.ˈvaɪzd] [US: æd.ˈvaɪzd]

advise [advised, advising, advises]▼(to give information or notice to; to inform)
verb
[UK: əd.ˈvaɪz] [US: æd.ˈvaɪz]