Insincerity

[Sarah]

The quality of being insincere; want of sincerity, or of beingin reality what one appears to be; dissimulation; hypocritical;deceitfulness; hollowness; untrustworthiness; as, the insincerity ofa professed friend; the insincerity of professions of regard.What men call policy and knowledge of the world, is commonly no otherthing than dissimulation and insincerity. Blair.

[Dianne]

the action or practice of pretending to feel something that you do not really feel, or not meaning what you say: