Source : Webster's Revised Unabridged Dictionary (1913)

Unlovely \Un*love"ly\, a.
   Not lovely; not amiable; possessing qualities that excite
   dislike; disagreeable; displeasing; unpleasant. --
   {Un*love"li*ness}, n.

Source : WordNet®

unlovely
     adj 1: without beauty or charm [syn: {unpicturesque}]
     2: used of circumstances; "an unlovely ride to work on a
        crowded train"