선뜻 (seon-ddeut) – gladly, willingly and without hesitation
You would typically use this vocabulary to describe a donation or support of kindness.
Basically this vocabulary would be used mostly in conjunction with a positive act.
You wouldn’t use this to describe how a killer would grant his victim death – gladly, willingly and without hesitation.
This vocabulary would usually be used in phrases like:
선뜻 돈을 빌려 주다
gladly, willingly and without hesitation, lend (or rather, donate) money
선뜻하게 기부하다
gladly, willingly and without hesitation, donate money
Examples:
그 부자가 10년 전부터 1년에 한 번 선똣하게 기부했어요.
That rich man, since 10 years ago, had gladly, willingly and without hesitation donated once every year.
오랜 친한 친구는 부자 아닌데 누구든지도 선뜻 돈을 빌려 줘.
My long-time and close friend is not rich but he gladly, willingly and without hesitation, lends money to anyone.