disparity
This term carries a strong connotation of injustice or imbalance. While a difference is neutral, a disparity suggests that the gap is improper, surprising, or systemic. It is frequently used in sociological, economic, and legal contexts to highlight a lack of equity. In a professional or academic setting, using this word instead of difference signals a critical perspective. It frames the gap as a problem to be solved rather than a mere observation of variety.
Countable when referring to specific, individual gaps in different categories, such as the disparity in healthcare and the disparity in education. Uncountable when referring to the general state of being unequal across a whole system.
Meanings
A noticeable and usually unfair difference between things that should be equal.
"The disparity between the salaries of executives and workers is staggering."