Synonyms of untruthfulness

1 Syllable
lie, fib
2 Syllables
deceit, fibbed, whopper, canard
3 Syllables
falseness, perjury, falsehood, truthlessness, distortion
4 Syllables
fallaciousness, mendacity
5 Syllables
untrustworthiness, inveracity, prevarication
6 Syllables
misrepresentation