1. Fitness; propriety; due quality.

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

• duneus,
• dulness,
• duness,
• dineness,
• xueness,
• fueness,
• eueness,
• dyeness,
• dheness,
• djeness,
• d8eness,
• d7eness,
• duwness,
• dusness,
• du4ness,
• du3ness,
• duenesss,
• duneess,
• duneas,
• dunees

The plural of the "Dueness" can be the "duenesses".

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