1. Funereal; deadly.

2. Wild; fallen wild.

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

• nural,
• cerel,
• fuedal,
• feale,
• sieral,
• femael,
• everal,
• foraml,
• fedural,
• fedreal,
• funral,
• fenural,
• fuenal,
• fearl,
• fermly,
• femal,
• riral,
• cearal,
• fimal,
• fueral

• for real,
• aerial,
• foal,
• ferry,
• frail,
• Ferrill,
• Ferrell,
• freak,
• fell,
• oral,
• female,
• ferrule,
• real,
• serial,
• formal,
• ferule,
• Ferrel,
• Fora,
• floral,
• funeral,
• freely,
• feel,
• fray,
• cereal,
• ferial,
• federal.

The adjective form of the word "feral" is "feral".

The plural form of the word "feral" is "ferals".

The singular form of the word "feral" is still "feral". It is both the adjective and the noun form.