嫌な (translations)→ annoy awful disagreeable disgusting gloomy nasty unpalatable unwholesome weird
好ましくない (translations)→ inadvisable undesired
不快な (translations)→ bad dislike sickroom strident unpleasant unpleasantly vexatious
有害な (translations)→ deleterious destructive detrimental harmful hazardous pernicious toxic