undesirable
un-de-SIR-a-ble
adjective
Not wanted or liked; something considered harmful, unpleasant, or disadvantageous.
"The new policy had some undesirable consequences."
noun
A person or thing considered unwelcome, unpleasant, or harmful to a group.
"They deported the undesirables from the country."
Thesaurus
Synonyms: ineligible, unsuitable, unenviable, unwanted
Antonyms: desirable