Given to falsehood; mendacious. See Synonyms at dishonest.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "untruthful" in a sentence
"After the debate, Daniels said his sharp responses at times came because he couldn't let Long Thompson get away with what he called her untruthful statements on the tax issue."
"That resolution also, through amendment, accuses me of what is termed untruthful propaganda that the Latino Congress says is intended to incite violence against immigrants."
"The Kumaonees have been described as untruthful but honest."