Main entry: irritate
Part of Speech: verb
Definition: upset, anger
Synonyms: abrade, affront, aggravate, annoy, bother, bug*, burn*, chafe, confuse, distemper, disturb, drive up the wall, enrage, exasperate, fret, gall, get, get on nerves, get under skin, grate, harass, incense, inflame, infuriate, irk, madden, needle, nettle, offend, pain, peeve, pester, pique, provoke, put out, rankle, rasp, rattle, rile, roil, rub the wrong way, ruffle, sour, try, vex
Notes: aggravate means 'to add to' an already troublesome or vexing matter or condition while irritate means 'to vex, annoy, or chafe'
irritate means 'inflame' (originally 'excite, rouse'); aggravate means 'worsen'