IPA: //ʌnˈlɛvəl//
KK: /ʌnˈlɛvəl/
Not flat or even; having an uneven surface or position.
The table is unlevel, causing the dishes to slide off.
Comparative: more unlevel
Superlative: most unlevel
Unlevel → It is formed from "un-" (meaning not) and "level" (from Old French *level*, meaning flat or even). The word "unlevel" means not flat or uneven.
Think of 'not' ('un-') being added to 'flat' or 'even' ('level') — that's why unlevel means something that is not flat.