RichThesaurus
ill-humored
vs
mumpish
ill-humored
adj
Irritable in a surly manner.
Having a bad temper.
mumpish
adj
sulking, mopey
Suffering from mumps (the disease).
How often have the words
ill-humored
and
mumpish
occurred in a corpus of books?
(source:
Google Ngram Viewer
)