tetchy vs petulant

tetchy and petulant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tetchy	No	Yes	No	No
petulant	No	Yes	No	No

As adjectives, tetchy and petulant are synonyms defined as:

Other synonyms of tetchy include cranky, fractious, irritable, nettlesome, peckish, peevish, pettish, scratchy, techy, testy.

tetchy (adjective)	petulant (adjective)
easily irritated or annoyed	easily irritated or annoyed