Sullen or sulky.
More example sentences
- Bring on the Wodehouse, I say, that sovereign remedy for any mumpish disharmony of mood.
- The piece on the sonnets has a lovely description of a sonnet's action, but descends into mumpish fact and opinion, like lecture notes put into a compactor.
- I've even learned to look past her attempts to create an unwelcome climate for those of us who are striving to take steps against the whole mumpish brotherhood of fatuous nincompoops.
early 18th century: from obsolete mump 'grimace, have a miserable expression' + -ish1.
Definition of mumpish in:
- The British & World English dictionary