I₁M₃P₃E₁R₁V₄I₁O₁U₁S₁

17 points

IMPERVIOUS is validvalid

[adj] : IMPERVIOUSLY [adv], IMPERVIOUSNESS [n]

130,652 of 196,601 in NWL2023·also valid in CSW24

not allowing entrance or passage, also IMPERVIABLE [adj IMPERVIOUSLY]

117,491 of 280,887 in CSW24·also valid in NWL2023