IPA: /ʌnˈmænɪdʒəbl/
KK: /ʌnˈmænɪdʒəbl/
Something that is difficult or impossible to control or manage.
The project became unmanageable due to the lack of organization.
Unmanageable → It is formed from "un-" (meaning not) and "manage" (from Old French *managier*, meaning to handle or control) and "-able" (meaning capable of). The word "unmanageable" means not capable of being handled or controlled.
Think of something that is 'not' ('un-') able to be 'handled' ('manage') — that's why it is unmanageable.