untruth
noun /ˌʌnˈtruːθ/
  /ˌʌnˈtruːθ/
(plural untruths 
 /ˌʌnˈtruːðz/,  /ˌʌnˈtruːθs/
  /ˌʌnˈtruːðz/,  /ˌʌnˈtruːθs/
)- [countable] (formal) a lie. People often say ‘untruth’ to avoid saying ‘lie’.Extra Examplescompare truth
- Her account of what had happened was a patent untruth.
 - It's not like you to tell an untruth!
 - The paper was fined for printing untruths about the affair.
 
 - [uncountable] the state of being false
 
Word OriginOld English untrēowth ‘unfaithfulness’ (see un-, truth).