Synonyms and related words :
bad, disagreeable, discommendable, distasteful, exceptionable, ill-favored, illaudable, impossible, improper, inadmissible, inappropriate, indefensible, intolerable, objectionable, tasteless, unagreeable, unallowable, unasked, unbidden, uncommendable, undesirable, uninvited, unpleasant, unpraiseworthy, unsatisfactory, unsuitable, untenable, unwanted, unwelcome, wrong