Noah Webster's Dictionary (a.) Full of sorrow; expressing, or intended to express, sorrow; mourning; grieving; sad; also, causing sorrow; saddening; grievous; as, a mournful person; mournful looks, tones, loss.

Multi-Version Concordance Mournful (3 Occurrences) Psalms 35:14 I behaved myself as though it had been my friend or my brother: I bowed down mourning, as one that bewaileth his mother. (See JPS) Daniel 6:20 And when he came near unto the den, he cried with a mournful voice unto Daniel: the king spoke and said unto Daniel, O Daniel, servant of the living God, hath thy God whom thou servest continually been able to save thee from the lions? (DBY) Micah 2:4 In that day they will take up a parable against you, and lament with a doleful lamentation, saying,'We are utterly ruined! My people's possession is divided up. Indeed he takes it from me and assigns our fields to traitors!'" (See NIV)