IPA: /dɪˈsɪmjʊleɪtə/
KK: /dɪˈsɪmjʊˌleɪtə/
A person who hides their true feelings or intentions by pretending to be something they are not.
He was a dissimulator, always pretending to agree while secretly opposing the plan.
Dissimulator → It is formed from "dis-" (meaning apart) and "simulare" (meaning to pretend or feign). The word describes someone who pretends to be something they are not, effectively putting on a false appearance or hiding the truth.
Think of someone who is 'pretending' ('simulare') to be something 'apart' from their true self ('dis-'). This helps you remember that a dissimulator is someone who hides their true intentions or feelings.