Definition of "tomblike"

Yossarian walked out of the office and down the stairs into the dark, tomblike street, passing in the hall the stout woman with warts and two chins, who was already on her way back in.

1961 November 10, Joseph Heller, “The Eternal City”, in Catch-22 […], New York, N.Y.: Simon and Schuster, page 416

He wrapped himself in a heavy cloak and went out from his sleeping chamber into the tomblike silence of the castle.

1994, Terry Brooks, The Talismans of Shannara