diametrically

adverb

1. as from opposite ends of a diameter

   adv.all

   Examples

   When two honest witnesses give accounts of the same event that differ diametrically, how can anyone prove that the evidence you gave was deliberately false?

   Three of these brushes were approximately 120 feet apart and the fourth diametrically opposite to one of the three.

   Source: WordNet 3.0

2. In a diametrical manner; directly; as, <i>diametrically</i> opposite.

   adverb

   Source: webster1913