dissimulation

US /ˌdɪsˌsɪm.jəˈleɪ.ʃən/
UK /ˌdɪsˌsɪm.jəˈleɪ.ʃən/
1.

verhulling

the fact of trying to hide your real feelings, character, or intentions:

:
He was capable of great dissimulation and hypocrisy.