Verb

• S: (v) annoy, rag, get to, bother, get at, irritate, rile, nark, nettle, gravel, vex, chafe, devil (cause annoyance in; disturb, especially by minor irritations) "Mosquitoes buzzing in my ear really bothers me"; "It irritates me that she never closes the door after she leaves"
• S: (v) irritate (excite to an abnormal condition, or chafe or inflame) "Aspirin irritates my stomach"
• S: (v) irritate (excite to some characteristic action or condition, such as motion, contraction, or nervous impulse, by the application of a stimulus) "irritate the glands of a leaf"

Adjective

• S: (adj) annoying, bothersome, galling, irritating, nettlesome, pesky, pestering, pestiferous, plaguy, plaguey, teasing, vexatious, vexing (causing irritation or annoyance) "tapping an annoying rhythm on his glass with his fork"; "aircraft noise is particularly bothersome near the airport"; "found it galling to have to ask permission"; "an irritating delay"; "nettlesome paperwork"; "a pesky mosquito"; "swarms of pestering gnats"; "a plaguey newfangled safety catch"; "a teasing and persistent thought annoyed him"; "a vexatious child"; "it is vexing to have to admit you are wrong"
• S: (adj) irritating, irritative ((used of physical stimuli) serving to stimulate or excite) "an irritative agent"
• S: (adj) irritating, painful (causing physical discomfort) "bites of black flies are more than irritating; they can be very painful"