oppugn

v. criticize harshly, oppose

Verb
1. challenge the accuracy, probity, or propriety of; "We must question your judgment in this matter"
(synonym) question, call into question
(hypernym) challenge

(v. t.)
To fight against; to attack; to be in conflict with; to oppose; to resist.
  

v. a.
مقابلہ کرنا, مخالفت کرنا, تعرض کرنا, سامنا کرنا

Synonyms and related words:
antagonize, battle, be antipathetic, be at cross-purposes, be contrary to, be inimical, be opposed to, beat against, belie, call into question, challenge, clash, collide, conflict, conflict with, confute, contest, contradict, contrapose, contrast with, contravene, controvert, counter, counteract, counterattack, counterbalance, countercheck, counterpoise, counterpose, countervail, counterwork, cross, deny, fight, gainsay, go against, go counter to, interfere with, juxtapose in opposition, lock horns, meet head-on, militate against, negate, offset, oppose, play at cross-purposes, rebut, reject, resist, run against, run counter to, set off, swim upstream, traverse, tug, war, work against