abyssal

English Thesaurus

1. resembling an abyss in depth; so deep as to be unmeasurable (adj.all)

similar	:	deep,
definition	:	having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination (adj.all)

derivation	:	abysm, abyss,
definition	:	a bottomless gulf or pit; any unfathomable (or apparently unfathomable) cavity or chasm or void extending below (often used figuratively) (noun.object)

2. relating to ocean depths from 2000 to 5000 meters (adj.pert)

pertainym	:	abyssal zone,
definition	:	the deep sea (2000 meters or more) where there is no light (noun.object)

3. resembling an abyss in depth; so deep as to be unmeasurable (adj.all)

derivation	:	abysm, abyss,
definition	:	a bottomless gulf or pit; any unfathomable (or apparently unfathomable) cavity or chasm or void extending below (often used figuratively) (noun.object)

4. relating to ocean depths from 2000 to 5000 meters (adj.pert)

pertainym	:	abyssal zone,
definition	:	the deep sea (2000 meters or more) where there is no light (noun.object)