noun
dissimulation
dih-sim-yuh-LAY-shun/dɪˌsɪmjuˈleɪʃn/
Hiding one's true feelings or intentions.
The cheerful mask represents dissimulation of the person's visible sadness.

Etymology
Combining “opposite of” with “make like” produced the idea of making something appear other than it is. Applied to feelings or intentions, this means concealing reality beneath a contrary appearance.
In context
practice dissimulation and you will succeed whether to concentrate or to divide your troops must be decided by circumstances
More examples
- He uses dissimulation to hide his disappointment about the decision.
- Despite her skill at dissimulation, her voice reveals her anger.
- The mediator asks for honesty rather than dissimulation.
Forms
dissimulation
dissimulate verb — To hide true feelings or intentions.
Similar words
- concealment
- Broader term for hiding information, objects, feelings, or intentions.
- pretense
- Emphasizes a false appearance rather than merely withholding feelings.