Meaning of the word steadfastness in English

What does steadfastness mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

steadfastness

US /ˈsted.fæst.nəs/
UK /ˈsted.fæst.nəs/

Noun

1.

the quality of staying the same for a long time and not changing quickly or unexpectedly:

Example:
He was unwavering in his steadfastness and devotion to science
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