aggravating annoying bothersome vexatious vexing exasperating galling irritating displeasing grating infuriating maddening rankling troublesome infernal tiresome troubling trying abrasive inconvenient pesky riling tedious unwelcome wearisome awkward burdensome carking chafing confounded difficult disagreeable disturbing frustrating nettlesome nettling pestiferous pestilent pestilential plaguy wearing cussed plaguey provoking upsetting distressing harassing unpleasant nagging niggling antagonizing antagonising irking worrisome perturbing unsettling enraging agitating disconcerting teasing jarring harrying objectionable worrying wretched repugnant thorny painful boring discouraging challenging forbidding puzzling knotty taxing tormenting bedevilling discomposing discomforting incommodious disappointing tricky mean offensive unpleasing agonizing unnerving unamusing festering antipathetic ugly wicked demanding punchable agonising uncongenial unsatisfying unattractive impossible bedeviling