Learner's definition of UNDESERVING
[more undeserving; most undeserving]
not having qualities that deserve praise, support, etc.
The article is written well but the author chose an undeserving subject.
He left all his money to his undeserving children.
(old-fashioned) the undeserving poor [=poor people who have bad moral character and do not deserve to be helped]
not used before a noun
— used to say that someone should not have or be given something
— + of