unsuitable or regrettable; "an unfortunate choice of words"; "an unfortunate speech"
not favored by fortune; marked or accompanied by or resulting in ill fortune; "an unfortunate turn of events"; "an unfortunate decision"; "unfortunate investments"; "an unfortunate night for all concerned"
originally an apple from the tree of knowledge of good and evil in the Garden of Eden; it is now used to refer to anything that is tempting but dangerous (as sexuality)