IPA: /ˈrɔːŋnəs/
KK: /rɔŋnɪs/
The state or quality of being incorrect or mistaken; a fault or error.
The wrongness of his actions was clear to everyone around him.
Wrongness → It is formed from "wrong" (from Old English *wrang*, meaning not right or incorrect) and "-ness" (meaning the state or quality of). The word "wrongness" refers to the state of being wrong or incorrect.
Think of the word 'wrong' to remember that 'wrongness' means the state of being incorrect.