steadfast
US /ˈsted.fæst/
UK /ˈsted.fæst/

1.
teguh, setia, tidak berganjak
resolutely or dutifully firm and unwavering
:
•
He remained steadfast in his loyalty to the company.
Dia kekal teguh dalam kesetiaannya kepada syarikat.
•
Her steadfast determination helped her overcome many obstacles.
Keazaman teguhnya membantunya mengatasi banyak halangan.