REGRETTABLYregrettably · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:REGRETTABLYTier 1Ordinal133Pythagorean52Classical125Reverse164Reverse Reduction65Standard1245Final Large1245Ordinal111Reduced21Atbash568Isopsephy1246Ordinal130Abjad1248