一ひと筋すじ縄なわではいかない

expression, i-adjective

not straightforward; hard to manage; tricky

Idiomatic expression meaning a person or situation cannot be handled by ordinary methods; often implies stubbornness, cunning, or complexity.

See also: 一筋縄

• 彼かれは一ひと筋すじ縄なわではいかない相あい手てだ。

  He is not someone you can deal with easily.

• この問もん題だいは一ひと筋すじ縄なわではいかない。

  This problem is not straightforward.