46 entries under adjective topic. ×

12
abysmal(wide, unfathomable)
10
deep(down, far, unfathomable)
10
unfathomable
8
bottomless
5
cavernous(wide, unfathomable)
4
yawning
4
gaping
4
immeasurable
4
seabed
4
unfathomed
3
marine
3
ocean floor
3
profound
2
ocean bottom
2
sea bottom
2
unlimited
1
Davy Jones's locker
1
aquatic(sea, marine, salty, shore)
1
boundless
1
broad
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APASmart Define. (2015). abyssal thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/abyssal/thesaurus/synonyms
ChicagoSmart Define. 2015. "abyssal thesaurus" https://smartdefine.org/abyssal/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, abyssal thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/abyssal/thesaurus/synonyms>.
MLASmart Define. "abyssal thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/abyssal/thesaurus/synonyms>