80 entries under concentrated topic. ×

24
intense(adjective, clear, strong, light, tough)
15
earnest(adjective, person, strong, warm, intense)
11
heavy(adjective, dull, set, strong, tough)
11
absorbed(adjective, excite, intense, property, full)
10
thick(adjective, rough, large, fat, dense)
9
impenetrable(adjective, set, obscure, solid, heavy)
8
immersed(adjective, activity, full, down, fixed)
7
intent(adjective, activity, strong, excite, intense)
7
rapt(adjective, activity, excite, informal, intense)
7
engaged(adjective, activity, intense, full, fixed)
7
preoccupied(adjective, activity, set, excite, intense)
7
set(adjective, activity, solid, intense, heavy)
6
dense(adjective, set, solid, dark, heavy)
6
engrossed(adjective, set, keen, full, fixed)
6
fixed(adjective, activity, set, solid, intense)
6
piercing(adjective, strong, keen, sharp, smart)
5
into(adjective, activity, intense, busy, absorbed)
5
lost(adjective, activity, happy, intense, distracted)
5
solid(verb, adjective, set, sound, heavy)
4
compact(adjective, set, hard, solid, heavy)
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APASmart Define. (2016). deep thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/deep/thesaurus/synonyms
ChicagoSmart Define. 2016. "deep thesaurus" https://smartdefine.org/deep/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, deep thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/deep/thesaurus/synonyms>.
MLASmart Define. "deep thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/deep/thesaurus/synonyms>