the state of being false or untrue something false; a lie or deception
WordReference Random House Learner's Dictionary of American English © 2025
fal•si•ty /ˈfɔlsɪti/USA pronunciation
n., pl. -ties.
WordReference Random House Unabridged Dictionary of American English © 2025- [uncountable] the quality or condition of being false.
- [countable] something false.
fal•si•ty
(fôl′si tē),USA pronunciation n., pl. -ties.
- the quality or condition of being false;
incorrectness;
untruthfulness;
treachery. - something false;
falsehood.
- Late Latin falsitās. See false, -ity
- Anglo-French
- Middle English falsete 1225–75
Collins Concise English Dictionary © HarperCollins Publishers::
'falsity' also found in these entries (note: many are not synonyms or translations):
break
- contingent
- for-
- lie
- lie detector
- lying
- many-valued logic
- opposition
- show
- three-valued
- truth
- warranty