/ˈdɒl ər əs/
adjective. 1 a full of grief. b sad. c sorrowful. d doleful. e dismal. 2 a occasioning pain or grief. b painful.
Freddy's face turned dolorous and grim after surreptitiously learning of his wife's affair. He should have known better. Her lies were transparent. But his trust was absolute, and she took advantage of his naïveté to cuckold him