undaunted

US /ʌnˈdɑːn.t̬ɪd/
UK /ʌnˈdɑːn.t̬ɪd/
1.

không nản lòng

still determined and enthusiastic, despite problems or no success:

:
•
Undaunted by the cold and the rain, people danced until 2 a.m.