Noah Webster's Dictionary (n.) The act of dissembling; a hiding under a false appearance; concealment by feigning; false pretension; hypocrisy.

Multi-Version Concordance Dissimulation (3 Occurrences) Romans 12:9 Let love be without dissimulation. Abhor that which is evil; cleave to that which is good. (KJV WBS) Galatians 2:13 And the other Jews dissembled likewise with him; insomuch that Barnabas also was carried away with their dissimulation. (KJV ASV DBY WBS YLT) Proverbs 26:26 Though his hatred is covered by dissimulation, his wickedness shall be made manifest in the congregation. (DBY)