adjective

offensive to the senses, especially through having a disgusting smell or taste or being dirty.

a foul odour

disgusting,revolting,repellent,repulsive,repugnant,abhorrent,loathsome,offensive,detestable,awful,dreadful,horrible,terrible,horrendous,hideous,appalling,atrocious,vile,abominable,frightful,sickening,nauseating,nauseous,stomach-churning,stomach-turning,off-putting,uninviting,unpalatable,unappetizing,unsavoury,distasteful,nasty,obnoxious,objectionable,odious,noxious,evil-smelling,foul-smelling,smelly,stinking,high,rank,rancid,fetid,malodorous,vomitous,ghastly,horrid,gruesome,godawful,gross,diabolical,putrid,yucky,icky,grotty,sick-making,gut-churning,beastly,whiffy,pongy,niffy,lousy,skanky,funky,on the nose,noisome,mephitic,disgustful,loathly,miasmic,miasmal,olid,dirty,filthy,mucky,grimy,grubby,stained,dirt-encrusted,muddy,muddied,unclean,unwashed,squalid,sordid,shabby,sleazy,soiled,sullied,scummy,rotten,defiled,decaying,putrefied,cruddy,manky,gungy,befouled,besmirched,begrimed,feculent