Synonyms of the word

irritant

• adj. Causing irritation or inflammation.
• adj. (law, Scotland) Rendering null and void; conditionally invalidating.
• n. Any medication designed to cause irritation.
• n. A source of irritation.

annoyance

• n. (countable) That which annoys.
• n. (countable) An act or instance of annoying.
• n. (uncountable) The psychological state of being annoyed or irritated.

bother

• v. (transitive) To annoy, to disturb, to irritate.
• v. (intransitive) To feel care or anxiety; to make or take trouble; to be troublesome.
• v. (intransitive) To do something which is of negligible inconvenience.
• n. Fuss, ado.
• n. Trouble, inconvenience.
• interj. A mild expression of annoyance.

botheration

• n. The act of bothering, or state of being bothered; cause of trouble; perplexity; annoyance; vexation.
• interj. An expression of annoyance.

infliction

• n. The act of inflicting or something inflicted; an imposition.

pain

• n. (countable and uncountable) An ache or bodily suffering, or an instance of this; an unpleasant sensation,…
• n. (uncountable) The condition or fact of suffering or anguish especially mental, as opposed to pleasure;…
• n. (countable) An annoying person or thing.
• n. (uncountable, obsolete) Suffering inflicted as punishment or penalty.
• n. Labour; effort; pains.
• v. (transitive) To hurt; to put to bodily uneasiness or anguish; to afflict with uneasy sensations of any…
• v. (transitive) To render uneasy in mind; to disquiet; to distress; to grieve.
• v. (transitive, obsolete) To inflict suffering upon as a penalty; to punish.

thorn

• n. A sharp protective spine of a plant.
• n. Any shrub or small tree that bears thorns.
• n. (figuratively) That which pricks or annoys; anything troublesome.
• n. A letter of the Latin alphabet (capital: Þ, small: þ), borrowed by Old English from the futhark to represent…
• v. To pierce with, or as if with, a thorn.