dissimulate

dɪˈsɪmjʊleɪt

verb

conceal or disguise (one’s thoughts, feelings, or character).

a country gentleman who dissimulates his wealth beneath ragged pullovers

pretend,deceive,feign,act,dissemble,masquerade,pose,posture,sham,fake,bluff,counterfeit,go through the motions,hide one’s feelings,be dishonest,put on a false front,lie