"insincerity" translation into Spanish

EN

"insincerity" in Spanish

EN insincerity
volume_up
{noun}

insincerity
My deep disapproval is due to the incredible insincerity of the document concerned.
Mi profunda oposición se debe a la increíble falta de sinceridad del documento en cuestión.

Synonyms (English) for "insincerity":

insincerity
sincerity