I₁N₁S₁U₁P₃E₁R₁A₁B₃L₁E₁N₁E₁S₁S₁

19 points

INSUPERABLENESS is no goodvalid

Not a playable Scrabble word in NWL2023.

It is valid in CSW24·

the state of being insuperable, also INSUPERABILITY [n]

121,832 of 280,887 in CSW24·not in NWL2023