IPA: //ˌkaɪndˈhɑːrtɪdnəs//
KK: /kaɪndˈhɑrtɪdnəs/
The quality of being caring and compassionate towards others.
Her kindheartedness was evident when she volunteered at the shelter every weekend.
Kindheartedness → It is formed from "kind" (from Old English *cynd*, meaning natural or innate) and "heartedness" (from "heart" meaning the organ associated with feelings, plus the suffix "-ness" meaning the state of being). The word "kindheartedness" refers to the state of having a kind heart or being compassionate and caring.
Think of someone who has a 'natural' ('kind') disposition and a 'state of being' ('-ness') that shows they care deeply for others.