morose
Concise Oxford English Dictionary © 2008 Oxford University Press:
morose/məˈrəʊs/
▶adjective sullen and bad-tempered.
– derivatives
morosely adverb,
moroseness noun.
morosely adverb,
moroseness noun.
– origin C16: from L. morosus ‘peevish’, from mos, mor- ‘manner’.
'morose' also found in these Oxford entries:

