IPA: /fərˈɡɪvɪŋnəs/
KK: /fərˈgɪvɪŋnəs/
The quality of being willing to forgive others and not hold grudges.
Her forgivingness made it easy for her friends to come back after making mistakes.
Forgivingness → It is formed from "forgive" (from Old English "forgiefan", meaning to give up resentment) and the suffix "-ness" (meaning the state or quality of). The word "forgivingness" refers to the quality or state of being forgiving, or the ability to let go of anger or resentment.
Think of the act of 'giving up resentment' ('forgive') and how that creates a quality or state ('-ness') of being forgiving.