This is the 4385th most frequent German word.
gestrigen
"Of yesterday" or "yesterday's."
In this sentence, 'gestrigen' is used as an adjective to describe 'Überprüfung' (review), referring to the specific review that occurred 'yesterday'.
Die Ergebnisse der gestrigen Überprüfung sind vielversprechend.
The results of yesterday's review are promising.
Here, 'gestrige' modifies 'Ereignis' (event), indicating that the event took place 'yesterday'.
Wir haben über das gestrige Ereignis gesprochen.
We talked about yesterday's event.
In this example, 'gestrigen' serves as an adjective describing 'Nachricht' (news), specifying the temporal nature of the news as pertaining to 'yesterday'.