IPA: /ʌnˈprɒfɪtəbli/
KK: /ʌnˈprɒfɪtəbli/
In a way that does not produce profit or financial gain.
The company operated unprofitably for several years before closing down.
Unprofitably → It is formed from "un-" (meaning not) and "profit" (from Latin "proficere", meaning to advance or make progress) and "-ably" (meaning in a manner). The word "unprofitably" means in a manner that does not lead to profit or benefit.
Think of 'not' ('un-') leading to 'advancement' ('profit') in a way that is 'in a manner' ('-ably') that does not yield any gain.