Synonyms of the word 
ORNERY → CANTANKEROUS - CROTCHETY - ILL-NATURED
ornery
- adj. (Appalachia) Cantankerous, stubborn, disagreeable.
- adj. (humorous, Southern US) Mischievous, prankish, teasing, disagreeable but in a good way.
- adj. (obsolete) Commonplace, inferior.
cantankerous
- adj. Given to or marked by an ill-tempered nature; ill-tempered, cranky, surly, crabby.
crotchety
- adj. Cranky, disagreeable, or stubborn, especially if prone to odd whims or fancies.
ill-natured
- adj. Having a bad nature, whether.
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