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impugn

audio pronunciation audio pronunciation
transitive verb
  • to challenge as false (another's statements, motives, etc.); cast doubt upon [Webster]
verb
  • express doubts about (sth) [Barron]
  • to assail by words or arguments; oppose or attack as false or lacking integrity [Taisha]

More word meanings for impugn
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Wiktionary:
impugn @ wiktionary
WordNet:
impugn @ wordnet.princeton.edu
Merriam-Webster Online:
impugn @ M-W.com
MSN Encarta:
impugn @ Encarta
American Heritage Dictionary of the English Language:
impugn @ AHD provided by Yahoo! Education
Answers.com:
impugn @ Answers.com
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