IPA: /ʌnˈwɜːrði/
KK: /ʌnˈwɜrði/
Not deserving of respect, attention, or value; lacking in worth or merit.
He felt unworthy of the award he received for his work.
Unworthy → It is formed from "un-" (meaning not) and "worthy" (from Old English "weorðig", meaning deserving or having worth). The word "unworthy" means not deserving or lacking worth.
Think of 'not' ('un-') deserving or 'having worth' ('worthy') — that's why unworthy means not deserving.