The word "untruth" means something that is not true, not accurate, or false. It refers to a statement or information that does not match reality. Full definition
Nana Akufo Addo and his running mate Mahamadu Bawumia are on record to have peddled a number of untruths about government as follows; Ghanapoliticsonline. (ghanapoliticsonline.com)
Umunna's intervention came after Viviane Reding, vice-president of the European commission in charge of justice, accused British ministers of telling untruths about the number of EU citizens claiming benefits in the UK. (theguardian.com)
Trump spokeswoman Kellyanne Conway went on NBC on Sunday and maintained that Spicer was not telling untruths about the inauguration — he was simply presenting «alternative facts.» (fortune.com)