IPA: /ʌnˈkɛpt/
KK: /ʌnˈkɛpt/
Not maintained or cared for; in a messy or neglected condition.
The garden looked unkept after the long winter.
Unkept → It is formed from "un-" (meaning not) and "kept" (from Old English "cepan", meaning to seize or hold). The word "unkept" means not held or maintained, referring to something that is neglected or not taken care of.
Think of 'not' ('un-') taking care of something that should be 'held' ('kept') — that's why unkept means something that is not maintained.