pertinaciously

英 [pɜːtɪ'neɪʃəslɪ] 美 [pɜːtɪ'neɪʃəslɪ]

• adv. 执拗地；顽强地

英英释义

Adverb:

1. in a dogged and pertinacious manner;

   "he struggled pertinaciously for the new resolution"