IPA: //ʌnˈdʒʌst.nəs//
KK: /ʌnˈdʒʌstnəs/
The quality of being unfair or not just; a situation where someone is treated unfairly or without justice.
The unjustness of the decision led to protests from the community.
Unjustness → It is formed from "un-" (meaning not) and "just" (from Latin "justus", meaning lawful or fair) and the suffix "-ness" (meaning the state or quality of). The word "unjustness" refers to the state of being not lawful or fair.
Think of 'not' ('un-') being added to 'just' (meaning lawful or fair) to remember that 'unjustness' means the quality of being unfair.