Entry 1 sense Webster, 1913 Sinicism /(sĭn"ĭ*sĭz'm)/ · Sin·i·cism · IPA /ˈsɪnɪsɪzəm/ 01 n. Anything peculiar to the Chinese; esp., a Chinese peculiarity in manners or customs. 1. Anything peculiar to the Chinese; esp., a Chinese peculiarity in manners or customs.(Ethnol.)