Adjectives

(a)unworthylacking in value or merit“dispel a student whose conduct is deemed unworthy”, “unworthy of forgiveness”
(s)undeserving, unworthynot deserving“the undeserving poor”
(s)despicable, ugly, vile, slimy, unworthy, worthless, wretchedmorally reprehensible“would do something as despicable as murder”, “ugly crimes”, “the vile development of slavery appalled them”, “a slimy little liar”