無む理り数すうむりすうMeanings1nounirrational numbermathematicsA real number that cannot be expressed as a simple fraction. Used in mathematics.√2は無む理り数すうです。√2 is an irrational number.無む理り数すうは分ぶん数すうで表あらわせない数かずです。Irrational numbers are numbers that cannot be expressed as fractions.
