oppugn

1 to demand proof of the truth or rightness of had the temerity to oppugn the merits of a study in a discipline that he knows nothing about Synonyms contest, dispute, impeach, challenge, query, questionRelated Words doubt, mistrust; kick (about), object (to), protest; combat, fight, oppose, resistNear Antonyms back, defend, support; advocate, champion, promote; abide, endure, stomach, tolerateAntonyms accept, believe, embrace, swallow

2 to strive to reduce or eliminate guardians of liberty who staunchly oppugned tyranny, whether from the right or the left Synonyms battle, combat, contend (with), counter, oppose, fightRelated Words baffle, checkmate, foil, frustrate, resist, thwart, withstand; confront, defy, face, meetNear Antonyms abide, bear, endure, suffer; advocate, back, champion, endorse (also indorse), support, upholdAntonyms advance, cultivate, encourage, forward, foster, further, nourish, nurture, promote