undesirable
//ˌʌndɪˈzaɪərəbəl//
Adjective
undesirableCanonical form
1
Not wanted or wished for; objectionable or harmful.
Smoking has many undesirable effects on your health.
2
Likely to cause problems or have negative consequences.
Smoking has many undesirable effects on your health.
Synonym
Noun
undesirableSingular
undesirablesPlural
1
A person considered to be objectionable or unwelcome in a particular place or social group.
The club has a policy of refusing entry to undesirables.