steadfast
adjectiveUK /ˈstedfɑːst/
US /ˈstedfæst/
Someone who is steadfast does not give up and stays the same no matter what.
She was steadfast in her promise to help her friend every day.
RELATED WORDS
OTHER MEANINGS
2. Not changing or moving, especially in a firm position.
The old tower stood steadfast against the strong wind.
3. Very firm in belief or purpose.
He remained steadfast in his decision to become a doctor.
4. Showing steady and continued support for someone or something.
Her steadfast support helped the team through hard times.