adjective
1.
not of a kind to be welcome
an unwelcome interruption that scattered his train of thought
Synonyms: undesired, unsought, unwanted, unwished
Related Word: distasteful, obnoxious, repellent; unasked; undesirable, unpleasant, unpleasing
Contrasted words: desired, sought, wanted; agreeable, desirable, pleasant, pleasing
Antonyms: welcome
2.
Synonyms: objectionable , exceptionable, ill-favored, inadmissible, unacceptable, undesirable, unwanted
Antonyms: welcome