I₁R₁R₁E₁F₄R₁A₁G₂A₁B₃L₁E₁

18 points

IRREFRAGABLE is validvalid

indisputable [adj] : IRREFRAGABILITY [n], IRREFRAGABLY [adv]

170,155 of 196,601 in NWL2023·also valid in CSW24

impossible to refute or dispute [adj IRREFRAGABLY]

124,462 of 280,887 in CSW24·also valid in NWL2023