cantankerous
Concise Oxford English Dictionary © 2008 Oxford University Press:
cantankerous/kanˈtaŋkərəs/
▶adjective bad-tempered, argumentative, and uncooperative.
– derivatives
cantankerously adverb,
cantankerousness noun.
cantankerously adverb,
cantankerousness noun.
– origin C18: of unknown origin; perh. a blend of Anglo-Irish cant ‘auction’ and rancorous (see rancour).
'cantankerous' also found in these Oxford entries:

