DISSIMULATE Meaning of DISSIMULATE in English [ dɪ'sɪmjʊleɪt ]■ verb hide or disguise one's thoughts or feelings.Derivativesdissimulation noundissimulator noun OriginME: from L. dissimulat- , dissimulare 'to conceal'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004