fractious vs petulant

fractious and petulant both are adjectives.

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

As adjectives, fractious and petulant are synonyms defined as:

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

fractious (adjective)	petulant (adjective)
unpredictably difficult in operation; likely to be troublesome	easily irritated or annoyed
stubbornly resistant to authority or control
easily irritated or annoyed