ˌamphiˈtheatrically,adv. [f.prec. + -ly2.] After the manner of the ascending rows of seats in an amphitheatre. 1716Town TalkNo. 4 (1790) 41 Seats for the audience amphitheatrically built.1881Chr.Treas. 434 Beyond the white walls of the Seraglio..rise amphitheatrically..the houses of Stamboul.