Antonyms of adj petulant

1 sense of petulant

Sense 1
cranky, fractious, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techy -- (easily irritated or annoyed; "an incorrigibly fractious young man"; "not the least nettlesome of his countrymen")

INDIRECT (VIA ill-natured) -> good-natured -- (having an easygoing and cheerful disposition; "too good-natured to resent a little criticism"; "the good-natured policeman on our block"; "the sounds of good-natured play")

Similarity of adj petulant

1 sense of petulant

Sense 1
cranky, fractious, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techy -- (easily irritated or annoyed; "an incorrigibly fractious young man"; "not the least nettlesome of his countrymen")
       => ill-natured (vs. good-natured) -- (having an irritable and unpleasant disposition)