Rigorous quality or application; strictness, severity.

Harsh inflexibility (in dealing with a person or group of people); severity, sternness; cruelty.

Rigour (in various senses); esp. (in early use) strictness, severity; (now) the quality of being detailed, accurate, and thorough; scrupulousness.

The quality or condition of being rigorous; strictness, severity; (also) rigorous action or approach.

The highest law or right; the utmost rigour or strictness of the law; extreme severity.

Extreme severity or rigour. Obsolete.