verb (used with object)
to disguise or conceal under a false appearance; dissemble: to dissimulate one's true feelings about a rival.
verb (used without object)
to conceal one's true motives, thoughts, etc., by some pretense; speak or act hypocritically.
Origin: 1525–35; Related forms
< Latin dissimulātus
(past participle of dissimulāre
to feign). See dis-1