pertinaciously
/ˌpɜːrtnˈeɪʃəsli/
adverb
- In a way that is stubbornly persistent or determined.
- He pertinaciously practiced the same skill every day for months.
- The dog pertinaciously chased the ball even when it rolled under the car.
- She pertinaciously argued her point until the committee agreed.
Antonyms