'Gordian' definitions:

Definition of 'Gordian'

adjective

Extremely intricate; usually in phrase `Gordian knot'

From: GCIDE

Gordian \Gor"di*an\, a.
1. Pertaining to Gordius, king of Phrygia, or to a knot tied by him; hence, intricate; complicated; inextricable. [1913 Webster]
Gordian knot, an intricate knot tied by Gordius in the thong which connected the pole of the chariot with the yoke. An oracle having declared that he who should untie it should be master of Asia, Alexander the Great averted the ill omen of his inability to loosen it by cutting it with his sword. Hence, a Gordian knot is an inextricable difficulty; and to cut the Gordian knot is to remove a difficulty by bold and energetic measures. [1913 Webster]
2. (Zool.) Pertaining to the Gordiacea. [1913 Webster]

From: GCIDE