Webster’s Revised Unabridged Dictionary · 1913
Imposing
Im·pos′ing, a. 1. Laying as a duty; enjoining.
2. Adapted to impress forcibly; impressive; commanding; as, an imposing air; an imposing spectacle. "Large and imposing edifices." Bp. Hobart.
3. Deceiving; deluding; misleading.
Im·pos′ing, n. (Print.) The act of imposing the columns of a page, or the pages of a sheet. See Impose, v. t., 4.
Imposing stone (Print.), the stone on which the pages or columns of types are imposed or made into forms; - - called also imposing table.