6
intrinsic(adjective, original, essential, basic, intimate)
6
mystical(adjective, hard, evil, obscure, delicate)
6
piercing(adjective, strong, keen, sharp, smart)
6
poignant(adjective, strong, difficult, sad, intense)
6
scholarly(adjective, obscure, smart, bright, rational)
6
thorough(adjective, great, complete, extreme, thoughtful)
6
thoughtful(adjective, good, keen, sensible, fair)
6
weighty(adjective, tough, severe, substantial, thoughtful)
5
Davy Jones's locker(noun, sea)
5
abstract(adjective, hard, delicate, complex, theoretical)
5
alto(adjective, low, intense, sounds, throaty)
5
beneath(adjective, position, down, far, low-set)
5
blue(noun, water, informal, sea, police)
5
booming(adjective, clear, strong, pleasant, intense)
5
complicated(adjective, hard, evil, obscure, heavy)
5
concealed(adjective, hard, evil, obscure, meaning)
5
confidential(adjective, intimate, private, penetrating, detailed)
5
cryptical
5
deceitful(cunning, sly, crafty, devious)
5
elemental(adjective, original, essential, basic, intimate)
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APASmart Define. (2016). deep thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/deep/thesaurus/synonyms
ChicagoSmart Define. 2016. "deep thesaurus" https://smartdefine.org/deep/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, deep thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/deep/thesaurus/synonyms>.
MLASmart Define. "deep thesaurus" 24 March 2016. Web. 20 September 2026. <https://smartdefine.org/deep/thesaurus/synonyms>