† imˈposturism Obs. rare.
[f. imposture n. + -ism.]
The practice of imposture.
| a 1640 Day Peregr. Schol. (1881) 48 For she knew..her base imposturisme would be discoverde. 1656 Earl of Monmouth Advt. fr. Parnass. 179 The cunning and imposturism which the princes of the world have used. |