definition of
falseness

[1] #1 falseness n. [falsity] the state of being false or untrue; "argument could not determine its truth or falsity". wn

[2] #2 falseness n. [faithlessness, fickleness, inconstancy] unfaithfulness by virtue of being unreliable or treacherous. wn

[3] #3 falseness n. [insincerity, hollowness] the quality of not being open or truthful; deceitful or hypocritical. wn