1. Having great extent.

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

• extensionj,
• extensionball,
• wxtensional,
• sxtensional,
• dxtensional,
• rxtensional,
• 4xtensional,
• 3xtensional,
• extendional,
• exstensional,
• extensionsal,
• extensionall,
• extenshonal,
• extensionel,
• tenshonal,
• septenrional,
• tensionaly,
• Extentional,
• Extentionel,
• Extentionall

• extend to,
• extensive,
• extension,
• extenuation,
• extension cord,
• extensively,
• extensor,
• extensible,
• extensile.

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

The plural form of the word "extensional" is "extensionals".

The singular form of the word "extensional" is "extensional".