1. of, relating to, or resembling an amphitheater; having a circular or oval shape with rising tiers of seats
2. arranged or constructed so that all parts are visible from a central point, as in an amphitheater

Examples

• The amphitheatrical design of the lecture hall allowed every student to see the professor clearly.
• The valley had an amphitheatrical shape, with steep slopes rising on all sides.
• The outdoor venue featured an amphitheatrical seating arrangement that enhanced acoustics.
• The amphitheatrical layout of the stadium provided excellent sightlines for spectators.
• The natural amphitheatrical formation of the canyon made it an ideal location for the concert.