A home truth noun phrase
Unadorned yet unpleasant facts about one that is said directly to them by someone else.
After the speech, the professor was ready to listen to any home truths from the audience.
When I told Mary some home truths about her bad eating habit, she went crazy and insulted me.
Time keeps passing.
White lie
To tell someone the truth about something that they had not understood or received false information
This phrase dates from the early 18th century.