IPA: /ˈlɔːfəl.nəs/
KK: /ˈlɔːfəl.nəs/
The quality of being in accordance with the law or rules; the state of being lawful.
The lawfulness of the contract was questioned by the judge.
Lawfulness → It is formed from "law" (from Old English *lagu*, meaning a rule or regulation) and "-fulness" (meaning the state of being full of or characterized by). The word "lawfulness" means the state of being full of law or in accordance with the law.
Think of 'law' as a rule and '-fulness' as the state of being full of that rule. This helps you remember that 'lawfulness' means being in accordance with the law.