881 entries under adjective topic. ×

12
artful(characteristic, sharp, intelligent, cunning)
12
deep-seated(down, original, essential, basic)
12
designing(characteristic, smart, cunning, slick)
12
extreme(strong, great, sharp, intense)
12
heartfelt(feeling, strong, great, warm)
12
keen(clear, strong, tough, severe)
12
serious(reasonable, keen, important, significant)
11
heavy(dull, set, strong, tough)
11
absorbed(excite, intense, property, full)
11
absorbing(property, captivating, spellbinding, hypnotic)
11
astute(characteristic, sharp, smart, bright)
11
cunning(characteristic, sharp, intelligent, cunning)
11
discerning(characteristic, keen, sharp, smart)
11
involved(hard, obscure, property, complex)
11
occult(hard, evil, obscure, heavy)
11
resonant(strong, intense, big, heavy)
10
ardent(person, strong, warm, difficult)
10
bass(sound, intense, sounds, throaty)
10
difficult(hard, severe, meaning, abstract)
10
full(clear, strong, open, smooth)
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APASmart Define. (2016). deep thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/deep/thesaurus/synonyms
ChicagoSmart Define. 2016. "deep thesaurus" https://smartdefine.org/deep/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, deep thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/deep/thesaurus/synonyms>.
MLASmart Define. "deep thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/deep/thesaurus/synonyms>