IMPERCEPTIBLEimperceptible · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:IMPERCEPTIBLETier 1Ordinal133Pythagorean70Classical127Reverse218Reverse Reduction74Standard952Final Large952Ordinal142Reduced34Atbash430Isopsephy687Ordinal147Abjad719