IPA: /ˈpiːvɪʃnəs/
KK: /ˈpivɪʃnɪs/
The quality of being easily annoyed or irritated, often resulting in a bad mood.
Her peevishness made it difficult for others to enjoy the gathering.
Peevishness → It is formed from "peevish" (from Middle English *pevishe*, meaning ill-tempered or irritable) and the suffix "-ness" (meaning the state or quality of). The word "peevishness" refers to the state of being irritable or easily annoyed.
Think of someone who is often 'ill-tempered' ('peevish') and remember that 'peevishness' describes the quality of being easily annoyed.