IPA: /ˈtrʌstɪŋnəs/
KK: /ˈtrʌstɪŋnəs/
The quality of being willing to believe that others are honest and reliable.
Her trustingness made it easy for her to form friendships quickly.
Trustingness → It is formed from "trust" (from Old Norse "traust", meaning confidence or reliance) and "-ing" (a suffix indicating the action or process) and "-ness" (a suffix that denotes a state or quality). The word "trustingness" refers to the quality or state of being trusting or having confidence in others.
Think of the word 'trust' which means having confidence in someone, and remember that 'trustingness' describes the quality of being confident or reliant on others.