IPA: /ɪˈræsɪbli/
KK: /ɪˈræsəblɪ/
In a way that shows a tendency to be easily angered or irritated.
He irascibly responded to the criticism, showing his frustration.
Irascibly → It is formed from "irascibilis" (from Latin, meaning easily angered) and the suffix "-ly" (meaning in a manner of). The word "irascibly" means in a manner that is easily angered or prone to anger.
Think of someone who is 'easily angered' — 'irascibilis' helps you remember that 'irascibly' describes acting in a way that shows that anger.