Definition for Impugn:

• im-p[= u]n', v.t. to oppose: to attack by words or arguments: to call in question.-- adj. IMPUGN'ABLE.-- ns. IMPUGN'ER; IMPUGN'MENT. [ L. impugn[= a]re-- in, against, pugn[= a]re, to fight.]

Synonyms for Impugn:

• v.

  •condemn (verb)
  • denounce.
  •criticize (verb)
  • impeach.
  •criticize, challenge (verb)
  • oppose,
  • Disaffirm,
  • throw the book at,
  • break,
  • cross,
  • traduce,
  • traverse,
  • resist,
  • negate,
  • stick it to,
  • thumb nose at,
  • throw doubt on,
  • gainsay,
  • assail,
  • deny,
  • knock,
  • skin alive,
  • smear,
  • question,
  • blast,
  • negative,
  • come down on,
  • attack,
  • zing,
  • dispute,
  • call into question,
  • cut to shreds,
  • cast aspersions upon,
  • swipe at,
  • zap,
  • cast doubt upon,
  • tar,
  • slam,
  • pin something on,
  • contradict,
  • trash,
  • contravene.

• Other synonyms:

  •accuse
  • tax,
  • charge.
  •contradict
  • deny.
  •doubt
  • Misdoubt,
  • question.
  •question
  • cast doubt upon.
  •reject
  • disavow.
  •Other relevant words:
  • forswear,
  • disclaim,
  • criminate,
  • Misdoubt,
  • gainsay,
  • blame,
  • rebut,
  • cry out against,
  • censure,
  • recant,
  • molest,
  • indict,
  • buffet,
  • drub,
  • accuse,
  • disparage,
  • defy,
  • argue against,
  • fight,
  • charge,
  • throw doubt on,
  • not accept,
  • reprehend,
  • anathemize,
  • repudiate,
  • shame,
  • traduce,
  • assail,
  • reproach,
  • pillory,
  • carp,
  • involve,
  • incriminate,
  • nullify,
  • confute,
  • fulminate against,
  • query,
  • pan,
  • slate,
  • tar,
  • break,
  • Denunciate,
  • invade,
  • refute,
  • denigrate,
  • pin something on,
  • rail,
  • cross,
  • doubt,
  • anathematize,
  • inveigh against,
  • reflect upon,
  • zap,
  • lambaste,
  • disallow,
  • knock,
  • stick it to,
  • abjure,
  • damn,
  • cast aspersions on,
  • trash,
  • beat,
  • contravene,
  • retract,
  • denounce,
  • belittle,
  • disagree with,
  • take back,
  • assault,
  • ridicule,
  • Beath,
  • Disaffirm,
  • asperse,
  • condemn,
  • smear,
  • object to,
  • cast doubt upon,
  • blow,
  • set upon,
  • scorn,
  • find fault with,
  • disapprove,
  • malign,
  • take exception to,
  • discredit,
  • stroke,
  • thumb nose at,
  • oppugn,
  • arraign,
  • contest,
  • slander,
  • blast,
  • negate,
  • skin alive,
  • vituperate,
  • come down on,
  • challenge,
  • debate,
  • not admit,
  • fault,
  • cast aspersions upon,
  • cast blame upon,
  • cut to shreds,
  • attack,
  • disprove,
  • swipe at,
  • tax,
  • contradict,
  • lay at door,
  • disavow,
  • disown,
  • call to account,
  • call into question,
  • enter the lists,
  • shake up,
  • quarrel with,
  • cavil,
  • revoke,
  • stain,
  • negative,
  • belie,
  • deny,
  • deprecate,
  • vilify,
  • dispute,
  • find fault,
  • call in question,
  • inculpate,
  • blight,
  • complain against,
  • revile,
  • traverse,
  • cry down,
  • decry,
  • renounce,
  • oppose,
  • throw the book at,
  • question,
  • zing,
  • impeach,
  • implicate,
  • resist,
  • declaim,
  • slam,
  • criticize,
  • fall upon,
  • disgrace,
  • strike,
  • reprobate,
  • taint,
  • dissent,
  • controvert,
  • bruise,
  • counter,
  • animadvert on.

Antonyms for Impugn:

• v.

  • criticize, challenge
    flatter, confirm, agree, assist, aid, corroborate, compliment, praise, support, concede, go along, join, approve, stay, allow, help.