To sink in is for news to be fully understood, usually slowly. It has not sunk in yet.
The delay is the point, since the words are heard long before they are felt. Bad news takes days to sink in and good news often takes as long.
1phrasesink inFor news to be fully understood, usually slowly.
“It took a week for the result to sink in properly.”
sink in is a phrase.
Practised in Thinking & Memory