
1) Abrade 2) Acerbate 3) Aggravate 4) Annoy 5) Antagonize 6) Beset 7) Bother 8) Bug 9) Chafe 10) Chevvy 11) Chevy 12) Chivvy 13) Chivy 14) Displease 15) Eatat 16) Enrage 17) Exacerbate 18) Fret 19) Grate 20) Harass 21) Harry 22) Incite 23) Infuriate 24) Irk 25) Itch 26) Miff 27) Nettle 28) Peeve 29) Pique
Found on
https://www.crosswordclues.com/clue/irritate

1) Aggravate 2) Anger 3) Annoy 4) Annoy or anger 5) Annoy, vex 6) Bother 7) Cause annoyance in 8) Chafe 9) Cheese off 10) Crawl 11) Devil 12) Displease 13) Drive you mad 14) Exasperate 15) Frustrate 16) Gall 17) Get at 18) Get on your nerves 19) Get to 20) Gravel 21) Hack off 22) Incense 23) Infuriate
Found on
https://www.crosswordclues.com/clue/irritate

• (v. t.) To increase the action or violence of; to heighten excitement in; to intensify; to stimulate. • (v. t.) To produce irritation in; to stimulate; to cause to contract. See Irritation, n., 2. • (v. t.) To render null and void. • (a.) Excited; heightened. • (v. t.) To excite anger or displeasure in; to provoke; to tea...
Found on
http://thinkexist.com/dictionary/meaning/irritate/

1. To increase the action or violence of; to heighten excitement in; to intensify; to stimulate. 'Cold maketh the spirits vigorous and irritateth them.' (Bacon) ... 2. To excite anger or displeasure in; to provoke; to tease; to exasperate; to annoy; to vex; as, the insolence of a tyrant irritates his subjects. 'Dismiss the man, nor irritate the god...
Found on
http://www.encyclo.co.uk/local/20973
Ir'ri·tate adjective Excited; heightened. [ Obsolete]
Found on
http://www.encyclo.co.uk/webster/I/100
Ir'ri·tate transitive verb [ See 1 st
Irritant .] To render null and void. [ R.]
Abp. Bramhall. Found on
http://www.encyclo.co.uk/webster/I/100

[
v] - physiology and biology: excite to some characteristic action or condition, as motion, contraction, or nervous impulse, by the application of a stimulus 2. [v] - excite to an abnormal condition, of chafe or inflame
Found on
http://www.webdictionary.co.uk/definition.php?query=irritate

irritate (IR i tayt') 1. Annoy, vex, anger, make angry, make impatient, peeve, provoke, exasperate, irk: 'The child's whining irritated the nurse.' 2. Make painful, aggravate, make sensitive, inflame, make sore, make swollen, rub against, chafe: 'Woolen clothing will irritate the rash.' Ire comes from Latin ira-, 'anger', which also gives us...
Found on
http://www.wordinfo.info/words/index/info/view_unit/3436/

to abnormally be uncomfortable
Found on
https://sciencetrek.org/sciencetrek/topics/body_waste/glossary.cfm
verb excite to an abnormal condition, of chafe or inflame; `Aspirin irritates my stomach`
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.