Dissemble

To hide under a false semblance or seeming; to feign (something) not to be what it really is; to put an untrue appearance upon; to disguise; to mask.

To put on the semblance of; to make pretense of; to simulate; to feign.

To conceal the real fact, motives, /tention, or sentiments, under some pretense; to assume a false appearance; to act the hypocrite.