Stygian iron Synonyms

Stygian replaced

Definitions for Stygian

(adjective) being without light or without much light
(adjective) dark and dismal as of the river Styx in Hades
(adjective) dark and gloomy

Synonyms for phrase

SI abbreviation

SI is an abbreviation for Stygian Iron

What does SI stand for?

SI stands for "Stygian Iron"

Definitions for Iron

(adjective) not showing weakness or uncertainty
(noun) a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
(adjective) extremely robust