Meaning : The state of being false or untrue.
Example :
Argument could not determine its truth or falsity.
Synonyms : falsity
Meaning : Unfaithfulness by virtue of being unreliable or treacherous.
Synonyms : faithlessness, fickleness, inconstancy
Meaning : The quality of not being open or truthful. Deceitful or hypocritical.
Synonyms : hollowness, insincerity
The quality of being open and truthful. Not deceitful or hypocritical.
His sincerity inspired belief.