DIAMETRICAL

diametric, diametrical, opposite, polar

(adjective) characterized by opposite extremes; completely opposed; “in diametric contradiction to his claims”; “diametrical (or opposite) points of view”; “opposite meanings”; “extreme and indefensible polar positions”

diametral, diametric, diametrical

(adjective) related to or along a diameter; “the diametral plane”

Source: WordNet® 3.1

Adjective

diametrical (comparative more diametrical, superlative most diametrical)

Of or pertaining to a diagonal or diameter

Completely opposed

Synonyms

• (pertaining to a diagonal or diameter): diametral

• (completely opposed): antipodal

Source: Wiktionary

Di*am"e*tric, Di*am"e*tric*al, a.

1. Of or pertaining to a diameter.

2. As remote as possible, as if at the opposite end of a diameter; directly adverse.

Source: Webster’s Unabridged Dictionary 1913 Edition