IPA: /ˈʌp.raɪt.nəs/
KK: /ˈʌpˌraɪt.nəs/
The quality of being morally correct, honest, and having strong principles.
Her uprightness in dealing with others earned her great respect.
Uprightness → It is formed from "upright" (from Old English "uprihte", meaning in a vertical position or morally correct) and "-ness" (a suffix indicating a state or quality). The word "uprightness" refers to the quality or state of being upright, both in physical posture and moral integrity.
Think of being in a 'vertical position' ('upright') and having a quality of 'morality' ('-ness') — that's why uprightness means being morally correct.