1. Sorrowful; mournful.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• aailful,
• sailful,
• eailful,
• 3ailful,
• 2ailful,
• wzilful,
• wsilful,
• wwilful,
• wqilful,
• waulful,
• wajlful,
• waklful,
• wailfull,
• weilful,
• wailfel,
• waleful,
• waeful,
• wallful,
• weaiful,
• wileful

• willful,
• wilfulness,
• wilfully,
• walpole,
• wall plug,
• wilful.

The adjective form of "wailful" is "wailing".

The plural form of the word "wailful" is "wailfuls".

The singular form of the word "wailful" is "wailful". This word does not change in its singular form.