IPA: //sʌbˈnɔːrməlɪti//
KK: /sʌbˈnɔrməlɪti/
The condition of being below normal or average in some way.
The study focused on the subnormality of certain test scores among the students.
Subnormality → It is formed from "sub-" (meaning under or below) and "normal" (from Latin "normalis", meaning conforming to a standard). The suffix "-ity" (meaning the state or condition of) indicates a state of being below the normal standard. Thus, subnormality refers to the condition of being below the normal standard.
Think of being 'under' ('sub-') the 'standard' ('normal') — that's why subnormality means being in a state below what is considered normal.