Defn: Characterized by imposture; deceitful. "Impostrous pretense of knowledge." Grote.

IMPOSTURAGE
Im*pos"tur*age, n.

Defn: Imposture; cheating. [R.] Jer. Taylor.

IMPOSTURE
Im*pos"ture, n. Etym: [L. impostura: cf. F. imposture. See Impone.]

Defn: The act or conduct of an impostor; deception practiced under a
false or assumed character; fraud or imposition; cheating.
From new legends And fill the world with follies and impostures.
Johnson.

Syn.
— Cheat; fraud; trick; imposition; delusion.

IMPOSTURED
Im*pos"tured, a.

Defn: Done by imposture. [Obs.]

IMPOSTUROUS
Im*pos"tur*ous, a.

Defn: Impostrous; deceitful.
Strictness fales and impostrous. Beau. & Fl.