Attentiveness and Rigorousness

Attentiveness noun - The state of being constantly attentive and responsive to signs of opportunity, activity, or danger.

Rigorousness and attentiveness are semantically related. In some cases you can use "Rigorousness" instead a noun "Attentiveness".

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

Attentiveness and rigorousness are semantically related. Sometimes you can use "Attentiveness" instead a noun "Rigorousness".