adjective

rough and bad-mannered; coarse.

boorish behaviour

coarse,uncouth,rude,discourteous,impolite,ungentlemanly,unladylike,ill-bred,ill-mannered,churlish,gruff,uncivilized,uncultured,uncultivated,unsophisticated,unrefined,common,rough,thuggish,loutish,crude,vulgar,crass,tasteless,unsavoury,gross,lumpen,brutish,bearish,barbaric,barbarous,Neanderthal,philistine,clodhopping,cloddish,slobbish,plebby,yobbish,ocker