This is the 10310th most frequent French word.
intact
Undamaged; whole; untouched.
Here, 'intact' is used as an adjective to describe the state of preservation of the castle.
Le vieux château est resté intact malgré les années.
The old castle remained intact despite the years.
'Intact' is used figuratively to imply completeness and unaltered nature of his memories preserved.
Il a réussi à préserver ses souvenirs intacts dans un journal.
He managed to preserve his memories intact in a journal.
The word 'intact' refers to the physical undamaged state of the items within the box.