O₁P₃E₁R₁A₁T₁I₁V₄E₁N₁E₁S₁S₁

18 points

OPERATIVENESS is validvalid

the quality of being operative [n OPERATIVENESSES]

182,911 of 196,601 in NWL2023·also valid in CSW24

the state of being in force, effect, or operation [n -ES]

164,118 of 280,887 in CSW24·also valid in NWL2023