steadfastly russian

• неотсту́пно

  persistently, unswervingly, relentlessly, steadfastly

• непреклонно

  inflexibly, unswervingly, adamantly, resolutely, steadfastly

• непоколеби́мо

  unswervingly, steadfastly, immovably, unshakably, firmly, resolutely

Examples

• Судья непреклонно стоял на своём мнении.

  The judge steadfastly stood by his opinion.

• Он непоколебимо верил в свою правоту.

  He steadfastly believed he was right.