(a.) Not acceptable; not pleasing; not welcome; unpleasant; disagreeable; displeasing; offensive.

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