“Steadfastness” in Japanese
Short answer
Steadfastness in Japanese is “匪石之心” (hisekinokokoro). Full meaning: steadfastness, firmness in one's conviction, having a heart that does not change as easily as a stone rolls about.
Other ways to say “Steadfastness” in Japanese
不動心
fudoushin imperturbability, steadfastness; cool head in an emergency, keeping one's calm (e.g. during a fight)
確固不動
kakkofudou unshakeable (e.g. belief), invincible, steadfastness, firmness, unwavering (e.g. support), absolutely secure
Looking for the other direction? Search any Japanese word in the Nihoner lexicon, or practise what you have learned in the learning games.