Objectionable (9)
(Other definitions for repugnant that I've seen before include "Abhorrent" , "Loathsome" , "Very unwelcome" , "vile" , "Nasty" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">objectionable</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for undesirable that I've seen before include "bad news" , "Objectionable person" , "Not wanted" , "Not to be wished for" , "Not welcome" .)