noun

An action or remark that causes outrage or offense.

he took his son’s desertion as a personal affront

insult,offence,indignity,slight,snub,slur,aspersion,provocation,injury,put down,humiliation

transitive verb

Offend the modesty or values of.

she was affronted by his familiarity

insult,offend,outrage,mortify,provoke,slight,hurt,pique,wound,put out,irk,displease,distress,bother,rankle,needle,vex,gall,scandalize,disgust,disgruntle,put someone’s back up,ruffle someone’s feathers,make someone’s hackles rise,raise someone’s hackles