IPA: //sʌbˈsɛntrəl//
KK: /sʌbˈsɛntrəl/
Not completely in the center; positioned just below the center point.
The subcentral area of the city is quieter than the bustling downtown.
Subcentral is formed from "sub-" (meaning under or below) and "central" (from Latin "centralis", meaning pertaining to the center). The word describes something that is located beneath or below the center.
Think of something that is 'under' ('sub-') the 'center' — that's what subcentral means.