1. completely opposite or contrary in every way
2. relating to or along a diameter of a circle or sphere
Usage: geometry

Examples

• The two candidates held diametrical views on healthcare policy.
• Their approaches to solving the problem were diametrically opposed.
• The siblings had diametrical personalities despite being twins.
• The diametrical distance across the circle was twelve inches.
• His current beliefs are diametrical to what he believed in college.
• The diametrical measurement helped determine the sphere’s volume.
• Their diametrical disagreement made compromise impossible.