IPA: /ˈstɛd.fæst/
KK: /ˈstɛdˌfæst/
This word describes someone or something that is loyal, constant, and not likely to change. It means being firm in beliefs or determination.
She remained steadfast in her support for the project, even when others doubted it.
Steadfast → It is formed from "stead" (from Old English *stede*, meaning place or position) and "fast" (from Old English *fæst*, meaning firm or fixed). The word "steadfast" means firmly fixed in place or unwavering in purpose.
Think of being firmly fixed in a 'place' ('stead') and being 'firm' ('fast') — that's why steadfast means unwavering or resolute.