Definition of "untruth"

untruth

/ʌnˈtɹuːθ/

noun
countable and uncountable, plural untruths
1. A lie or falsehood.
  Quotations
  He added: "We've always had spin, especially from Government. But this is not spin. This is dishonesty and so it's our rail media's urgent responsibility to call it out because non-specialist journalists across the country will report this and gradually these untruths will be accepted.
  2022 January 26, Paul Stephen, “Network News: Government's IRP claims condemned as "dishonest"”, in RAIL, number 949, page 7
2. The condition of being false; truthlessness.