Insinuating
来自Big Physics
early 16th century (in the sense ‘enter (a document) on the official register’): from Latin insinuat- ‘introduced tortuously’, from the verb insinuare, from in- ‘in’ + sinuare ‘to curve’.
etymonline
insinuating (adj.)
"wheedling, ingratiating," 1590s, present-participle adjective from insinuate (v.). Related: Insinuatingly.
