irritability

noun
🔊/ˌɪrɪtəˈbɪləti/
🔊/ˌɪrɪtəˈbɪləti/
[uncountable]
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  1. the fact of tending to get annoyed easily
    • Lack of vitamin B in the diet causes irritability.饮食中缺乏维生素B会引起烦躁。