From Longman Dictionary of Contemporary Englishgrouchygrouch‧y /ˈɡraʊtʃi/ adjective informal BAD-TEMPEREDin a bad temper, especially because you are tired SYN bad-tempered —grouchiness noun [uncountable]
Examples from the Corpus
grouchy• I had a headache and was incredibly grouchy.• One had all the grouchy ladies in it. 