1. Extreme malevolence; malice; unfavourableness; virulence; tendency to mortification or a fatal issue.

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

• maligancy,
• malignacy,
• malgnancy,
• malignany,
• maligance,
• malignance,
• malignence,
• nalignancy,
• kalignancy,
• jalignancy,
• mzlignancy,
• mslignancy,
• malignnacy,
• malignancyy,
• melignancy,
• malignincy,
• malignanty,
• valinomcyin,
• Malignney,
• Malignancys

• malignantly,
• maligner,
• malignment,
• malignity,
• malignant,
• malignance,
• maligned.

The adjective form of the word "malignancy" is "malignant".

The plural of the "malignancy" can be the "malignancies".

The singular of the "malignancy" can be the "malignancy".