a. 1. Laying as a duty; enjoining. [ 1913 Webster ]

2. Adapted to impress forcibly; impressive; commanding; as, an imposing air; an imposing spectacle. “Large and imposing edifices.” Bp. Hobart. [ 1913 Webster ]

3. Deceiving; deluding; misleading. [ 1913 Webster ]

n. (Print.) The act of imposing the columns of a page, or the pages of a sheet. See Impose, v. t., 4. [ 1913 Webster ]

Imposing stone (Print.), the stone on which the pages or columns of types are imposed or made into forms; -- called also imposing table. [ 1913 Webster ]

adv. In an imposing manner. [ 1913 Webster ]

n. The quality of being imposing. [ 1913 Webster ]