impugn

from WordNet (r) 3.0 (2006)
impugn
    v 1: attack as false or wrong
    
from The Collaborative International Dictionary of English v.0.48
Impugn \Im*pugn"\, v. t. [imp. & p. p. {Impugned}; p. pr. & vb.
   n. {Impugning}.] [OE. impugnen, F. impugner, fr. L.
   impugnare; in on, against + pugnare to flight. See
   {Pugnacious}.]
   To attack by words or arguments; to contradict; to assail; to
   call in question; to make insinuations against; to gainsay;
   to oppose; as, to impugn a person's integrity.
   [1913 Webster]

         The truth hereof I will not rashly impugn, or
         overboldly affirm.                       --Peacham.
   [1913 Webster]
    
from Moby Thesaurus II by Grady Ward, 1.0
73 Moby Thesaurus words for "impugn":
      abjure, accuse, anathematize, anathemize, animadvert on, arraign,
      assail, assert the contrary, attack, belie, blame,
      call in question, call to account, cast blame upon,
      cast reflection upon, censure, complain against, condemn, contest,
      contradict, contravene, controvert, counter, criminate, cross,
      cry down, cry out against, cry out on, cry shame upon, damn, decry,
      denounce, denunciate, deny, disaffirm, disallow, disavow, disclaim,
      disown, disprove, dispute, forswear, fulminate against, gainsay,
      impeach, implicate, incriminate, inculpate, indict,
      inveigh against, involve, join issue upon, negate, negative,
      not accept, not admit, nullify, oppose, recant, reflect upon,
      refuse to admit, refute, renounce, reprehend, reproach, reprobate,
      repudiate, retract, revoke, shake up, take back, take issue with,
      traverse

    

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