adjective

unpleasant or unenjoyable.

a disagreeable thought

unpleasant,displeasing,nasty,horrible,dreadful,horrid,frightful,abominable,odious,offensive,obnoxious,objectionable,repugnant,repulsive,repellent,revolting,disgusting,foul,vile,nauseating,sickening,hateful,detestable,distasteful,unsavoury,unpalatable