IPA: /ʌnˈhoʊlsəmli/
KK: /ʌnˈhoʊlsəmli/
In a way that is unhealthy or morally harmful.
The food was prepared unwholesomely, making it unsafe to eat.
Unwholesomely → It is formed from "un-" (meaning not) and "wholesome" (from Old English "hal" meaning whole or healthy, and "some" meaning characterized by). The word "unwholesomely" means in a manner that is not healthy or beneficial.
Think of 'not' ('un-') being added to 'healthy' ('wholesome') — this helps you remember that 'unwholesomely' means something that is not good for health.