Definitions

1. adjective

having or showing a bad-tempered or ill-mannered disposition; rude or surly

“He was being churlish and refused to lend me his tools.”

2. noun

a surly or ill-tempered person

“The churlish behavior of the customer was unacceptable.”

3. adverb

in a churlish or surly manner

“He spoke to me in a churlish tone.”