pig-headedly
1. [ adverb ] in a stubborn unregenerate manner
Synonyms: stubbornly obstinately cussedly mulishly obdurately
Examples:

"she remained stubbornly in the same position"

Related terms: stubborn cussed cussed cussed bullheaded hardheaded stubborn cussed bullheaded
Similar spelling:   pigheaded
  pigheadedness