IMPROMPTUimpromptu · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:IMPROMPTUTier 1Ordinal141Pythagorean51Classical133Reverse102Reverse Reduction48Standard862Final Large862Ordinal124Reduced43Atbash236Isopsephy1120Ordinal148Abjad706