Meaning
firm; resolute; adamant — One's mind, will, word, etc., being very firm and steadfast just like iron and stone.
Conjugations
철석같은철석같아철석같으니철석같습니다철석같아요철석같았어철석같았어요철석같았습니다
firm; resolute; adamant — One's mind, will, word, etc., being very firm and steadfast just like iron and stone.