Rigorousness and Self-abnegation

Rigorousness noun - The quality or state of being demanding or unyielding (as in discipline or criticism).

Self-abnegation and rigorousness are semantically related. In some cases you can use "Self-abnegation" instead a noun "Rigorousness".

Self-abnegation noun - Voluntary restraint in the satisfaction of one's appetites.

Rigorousness and self-abnegation are semantically related. Sometimes you can use "Rigorousness" instead a noun phrase "Self-abnegation".