IMPERMISSIBLEimpermissible · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:IMPERMISSIBLETier 1Ordinal149Pythagorean68Classical142Reverse202Reverse Reduction85Standard542Final Large542Ordinal137Reduced38Atbash485Isopsephy732Ordinal156Abjad466