1. Not deserving; followed by of. As sinners, were are utterly unworthy of the divine favor.
2. Not deserving; wanting merit. Receive your unworthy son into favor. One great evil of government is that unworthy men are elected or appointed to fill important offices.
3. Unbecoming; vile; base; as unworthy usage or treatment.
4. Not suitable; inadequate. This opinion is unworthy of its author.