有ゆう益えき無む害がい

noun, na-adjective

beneficial and harmless; good with no drawbacks

Describes something that is entirely positive, with no negative side effects. Often used in formal or written contexts to emphasize safety and benefit.

• このサプリメントは有ゆう益えき無む害がいだと宣せん伝でんされている。

  This supplement is advertised as beneficial and harmless.

• 彼かれの提てい案あんは有ゆう益えき無む害がいなものだった。

  His proposal was something beneficial and harmless.