5
hydrothermal vent(noun, crack, water, opening, rift)
3
abyss(noun, nature, environment, crack, gap)
3
visceral(adjective, feeling, sensibility, internal, viscus)
1
Atacama Trench
1
Bougainville Trench
1
Japan Trench
1
Nares Deep
1
abstruse
1
cogent
1
deep-rooted
1
deep zone
1
detailed
1
earnest
1
exact
1
exacting
1
extreme
1
faithful
1
forward
1
grave
1
hard
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10 years ago|736 views|share |citing 
APASmart Define. (2016). deep thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/deep/thesaurus/narrower
ChicagoSmart Define. 2016. "deep thesaurus" https://smartdefine.org/deep/thesaurus/narrower (accessed September 20, 2026).
HarvardSmart Define 2016, deep thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/deep/thesaurus/narrower>.
MLASmart Define. "deep thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/deep/thesaurus/narrower>