12 letters · 15 points in Scrabble
noun a person who professes beliefs and opinions that he or she does not hold in order to conceal his or her real feelings or motives
originFrom Latin dissimulātor, from dissimulāre (“to conceal, to pretend, to neglect”) + -tor (“-er: forming agent nouns”), from dissimilis (“unlike”) + -āre (“forming verbs”). Equivalent to dissimulate + -or.
Etymology from Wiktionary, CC BY-SA 3.0