Example : Dispel a student whose conduct is deemed unworthy.
Unworthy of forgiveness.

Example : The undeserving poor.

Synonyms : undeserving

Example : Would do something as despicable as murder.
Ugly crimes.
The vile development of slavery appalled them.
A slimy little liar.

Synonyms : despicable, slimy, ugly, vile, worthless, wretched