IPA: /ˌɪrɪtəˈbɪləti/
KK: /ɪˌrɪtəˈbɪləti/
The quality of being easily annoyed or angered; a tendency to become upset quickly.
Her irritability made it difficult for her to enjoy social gatherings.
Irritability → It is formed from "irritare" (meaning to provoke or annoy) and the suffix "-bility" (meaning the quality of being). The word "irritability" refers to the quality of being easily provoked or annoyed.
Think of the word 'irritate' which means to provoke or annoy, and remember that 'irritability' describes the quality of being easily annoyed.