Synonyms for Falseness:

n.

correct, true, erroneousness, error. false-heartedness, perfidy, treachery, treacherousness, infidelity, trust, unfaithfulness, perfidiousness, disloyalty, traitorousness, continue. disloyalty (noun)
faithlessness, inconstancy.
faithlessness (noun)
fickleness, fraud.
falsehood (noun)
fallacy, pretense, hogwash, fib, fakery.
falseness (noun)
faithlessness, deceit, unfaithfulness, infidelity, falsity, inconstancy, erroneousness, perfidy, untruth, insincerity, false-heartedness, falsehood, treachery, error, traitorousness, perfidiousness, disloyalty, fickleness, treacherousness.
infidelity (noun)
infidelity.
lie (noun)
forgery.
perfidy (noun)
perfidy.
pretension (noun)
affectation, fraud, disguise, guise, claim, cover, deceit, imitation, air, fakery, charade, pose, front, imposture, stage, bluff, show, mannerism, masquerade, gimmick, pretense, forgery, impersonation, counterfeit, ostentation, pretension, artificiality, facade, device.
state (noun)
falsity.
untruth (noun)
malarkey, fib, lie, untruth, fallacy, rot, rubbish, falsehood, baloney, hogwash, balderdash.

Other synonyms:

erroneousness, false-heartedness, perfidiousness, unfaithfulness. traitorousness, treacherousness. infidelity, treachery. error. deceit
perfidy.
infidelity
disloyalty.
Other relevant words:
faithlessness, continue, erroneousness, perfidiousness, fickleness, perfidy, correct, treachery, false-heartedness, traitorousness, infidelity, trust, treacherousness, inconstancy, true, disloyalty, falsity, insincerity, error, unfaithfulness.

Usage examples for falseness

  1. Nothing could divide her from him but his death or hers,- or falseness on his part. – The Duke's Children by Anthony Trollope
  2. He pondered every word of his conversation with the Morgans, and fancied that he saw indisputable evidence of the Doctor's falseness in his talk about whisky. – A Tar-Heel Baron by Mabell Shippie Clarke Pelton
  3. She understood well that she would be called upon to admit in public the falseness of the oaths she had sworn upon two occasions; and that, though she would not be made amenable to any absolute punishment for her perjury, she would be subject to very damaging remarks from the magistrate, and probably also from some lawyers employed to defend the prisoners. – The Eustace Diamonds by Anthony Trollope