1. The act or the process of growing thin or lean; the act of representing anything less wrong, faulty, or criminal than it is.

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

• extenction,
• extention,
• extenuatiing,
• extendtion,
• extenstion,
• extenuatind,
• extenuatin,
• extenuating,
• wxtenuation,
• sxtenuation,
• dxtenuation,
• rxtenuation,
• 4xtenuation,
• 3xtenuation,
• eztenuation,
• ectenuation,
• edtenuation,
• externuation,
• exenuation,
• extenution

• extension cord,
• extend to,
• extenuate,
• extenuating,
• extension,
• extensional.

The adjective form of the word "extenuation" is "extenuating".

The plural of the "extenuation" can be the "extenuations".

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