strictness
US /ˈstrɪkt.nəs/
UK /ˈstrɪkt.nəs/

1.
severità, rigore
the quality of being very firm and demanding in rules or discipline
:
•
The strictness of the new regulations surprised everyone.
La severità delle nuove normative ha sorpreso tutti.
•
Her parents were known for their strictness regarding curfews.
I suoi genitori erano noti per la loro severità riguardo ai coprifuoco.