押おしも押おされもせぬ

expression, noun-modifying (irregular)

established; acknowledged; leading

Fixed expression meaning someone or something is so well-established that their status cannot be challenged. Often used prenominally to describe a person, institution, or reputation.

• 彼かれは押おしも押おされもせぬ実じつ力りょく者しゃだ。

  He is a fully established person of influence.

• この店みせは押おしも押おされもせぬ老舗しにせです。

  This shop is a long-established and widely recognized store.