• WordNet 3.6
    • n falsity a false statement
    • n falsity the state of being false or untrue "argument could not determine its truth or falsity"
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Webster's Revised Unabridged Dictionary
    • Falsity That which is false; falsehood; a lie; a false assertion. "Men often swallow falsities for truths."
    • Falsity The quality of being false; coutrariety or want of conformity to truth. "Probability does not make any alteration, either in the truth or falsity of things."
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Century Dictionary and Cyclopedia
    • n falsity The character of being false; contrariety or nonconformity to truth or fidelity; falseness.
    • n falsity That which is false; a falsehood; a lie; a false assertion.
    • n falsity Synonyms Falsity, etc. (see falsehood); incorrectness, erroneousness, fallaciousness.
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Chambers's Twentieth Century Dictionary
    • Falsity quality of being false: a false assertion
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  • Blaise Pascal
    “Contradiction is not a sign of falsity, nor the lack of contradiction a sign of truth.”


Webster's Revised Unabridged Dictionary
L. falsitas,: cf. F. fausseté, OF. also, falsité,. See False (a.)
Chambers's Twentieth Century Dictionary
O. Fr. fals (mod. faux)—L. falsus, pa.p. of fallĕre, to deceive.


In literature:

The whole country rings with falsities about her.
"The Third Degree" by Charles Klein and Arthur Hornblow
It is often said that it is either a falsity, or a barren truism.
"Social Rights and Duties, Volume I (of 2)" by Sir Leslie Stephen
From this you may gather that truth is the source of beauty, falsity of ugliness.
"An Essay on True and Apparent Beauty in which from Settled Principles is Rendered the Grounds for Choosing and Rejecting Epigrams" by Pierre Nicole
But again the tedium and the sense of the falsity of the spoken word put her off.
"The Rainbow" by D. H. (David Herbert) Lawrence
What these oft-quoted lines go to show is, that a falsity in verse will travel faster and endure longer than a falsity in prose.
"Graham's Magazine Vol XXXII No. 1 January 1848" by Various
What stronger proof of the falsity of this art can we have than to see that Nero renounced it?
"The Phantom World" by Augustin Calmet
Tired of thy mystery and falsity.
"The Pirate Woman" by Aylward Edward Dingle
Its truth or falsity makes no difference at that moment.
"Flowers of Freethought" by George W. Foote
The myths by their obvious falsity and absurdity on the surface stimulate the mind capable of religion to probe deeper.
"Five Stages of Greek Religion" by Gilbert Murray
Today the Christian truth has obscured the falsity of hell.
"The Philippine Islands, 1493-1898 - Volume 40 of 55" by Francisco Colin

In news:

Any argument with one of its premises as a logical falsity is automatically valid.
Two Views of Marriage, and the Falsity of the Choice Between Them From the Feb 7, 2011, issue of NR.
Congress intended Can Spam to supersede state e-mails laws except for cases of falsity and deception, Walton said.
One is the sheer falsity of the analogy, beyond the obvious fact that both are appalling and inexcusable.
The falsity should be embraced by those who appreciate entrepreneurs.
Falsity Claim Advances In Ohio Redistricting Fight.
'Angels & Demons' revels in falsity that Church is anti-science.

In science:

Statement 4.119. A tautology is a known fact of every observer. A contradiction is a known falsity of every observer.
On the Nature of Reality
The negation of a known truth is a known falsity.
On the Nature of Reality
The negation of a known falsity is a known truth.
On the Nature of Reality
The conjunction or the disjunction of compatible known falsities is also a known falsity.
On the Nature of Reality
If the possibility of a proposition is zero then it is a necessary falsity.
On the Nature of Reality