Definitions

1. adjective

given to wailing or lamentation; expressing sorrow or lamentation; mournful

“The wailful melody evoked a sense of sadness in the listeners.”

2. adjective

expressing wailing or lamentation; mournfully wailing

“The wailful cries echoed through the empty streets at midnight.”

3. noun

a sound of wailing or lamentation

“The wailful of the sirens pierced through the night air.”