1. The quality of being staid.

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

• staines,
• tardness,
• stoicness,
• stilness,
• stainess,
• stailness,
• saddness,
• saidness,
• stifness,
• scardness,
• staginesse,
• stagness,
• staiedness,
• staidnesse,
• stidness,
• staidnes,
• staydness,
• staitness,
• saitness,
• setledness

• Steadman,
• steadiness,
• stoutness.

The adjective form of the word "staidness" is "staid".

The plural of the "staidness" can be the "staidnesses".

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