unworthy
adj. B2 Upper Intermediate US //ənˈwɝði// UK //ʌnwˈɜːði// un·wor·thy
adj. not deserving of respect, attention, or a particular honor. You use this to describe something that is not good enough for a specific person or situation.
adj. lacking in value, merit, or honor; not deserving of a particular status or treatment. Often used to describe actions or thoughts that fall below a person's moral standards.
He felt unworthy of the award he received.
The politician dismissed the rumors as unworthy of a serious response from his office.
She struggled with the persistent feeling that she was unworthy of her success, despite having worked harder than anyone else in the firm.
From Middle English unworthy, equivalent to un- + worthy.
Usage
Often followed by the preposition 'of' and a noun phrase.