nullable adjective 2noun 1forms 1 adjective2 •That may be nullified; nullifiable.Then you regard as nullable and voidable the laws of Titius and Apuleius, because they are unjust. — 1841 •That is allowed to have a null value.You want to perform an aggregation on a column, but the column is nullable. — 2006 noun1 •A variable, etc. that is allowed to have a null value. formsnullables
