1. Irregularly.

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

• anomously,
• anomymously,
• anominously,
• anomolously,
• anomyously,
• znomalously,
• snomalously,
• wnomalously,
• qnomalously,
• abomalously,
• amomalously,
• ajomalously,
• ahomalously,
• animalously,
• ankmalously,
• anlmalously,
• anomalusly,
• anomalouslyy,
• Anomalopapidae,
• anamolously

• anomalist,
• animalculum,
• anomalousness,
• anomalous,
• animalcule,
• anomalopteryx,
• anomalops,
• animal oil,
• anomalopidae.

The adjective form of the word "anomalously" is "anomalous".

The plural form of the word "anomalously" is "anomalously." The word does not change when forming the plural.

The singular form of the word "anomalously" is "anomalous"