1. The state or quality of being inert; inertia; indisposition to exertion; sluggishness.

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

• eneptness,
• interness,
• unertness,
• jnertness,
• knertness,
• onertness,
• 9nertness,
• 8nertness,
• ibertness,
• imertness,
• ijertness,
• ihertness,
• inertnesss,
• inertnesse,
• inertnes,
• inwrdness,
• ginerness,
• gignerness,
• inxpertness,
• unethess

• inert gas,
• inherit,
• inwardness,
• in return,
• inheritress,
• inertia,
• neatness.

The adjective form of the word "inertness" is "inert".

The plural of the "inertness" can be the "inertnesses".

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