いらいら

Etymology
.

Adverb

 * 1) irritatedly
 * 2) having an unpleasant feeling like that caused by thorns pricking one's skin repeatedly
 * 3) describes the intense stimulation caused by light or heat: blistering
 * 1) describes the intense stimulation caused by light or heat: blistering
 * 1) describes the intense stimulation caused by light or heat: blistering

Usage notes
Often used with.

Verb

 * 1) to be irritated
 * 2) to have an unpleasant feeling like that caused by thorns pricking one's skin repeatedly
 * 3)  to cause intense stimulation: blaze, beat down
 * 1)  to cause intense stimulation: blaze, beat down

Noun

 * 1) irritation, frustration