相そう違いなく

adverb

certainly; surely; without fail

Expresses strong certainty or assurance that something will happen or is true. Often used in formal or written contexts.

• 彼かれは相そう違いなく約やく束そくの時じ間かんに来くるだろう。

  He will certainly come at the promised time.

• この計けい画かくは相そう違いなく成せい功こうする。

  This plan will surely succeed.