The definition of cantankerous is someone who is bad tempered, grumpy or looking for an argument.(adjective)
An example of cantankerous is a grumpy old man who lives on your street who is always watching the neighborhood kids to find something to yell at them about.
See cantankerous in Webster's New World College Dictionary
Origin: prob. < ME contakour, troublemaker (< Anglo-Fr < contec, discord) + -ous
See cantankerous in American Heritage Dictionary 4
Origin: Perhaps from Middle English contek, dissension (influenced by such words as rancorous and cankerous)
Origin: , from Anglo-Norman contec
Origin: , possibly from Latin contāctus
Origin: , past participle of contingere, to touch; see contact.
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