28 entries under firm topic. ×

12
compact(adjective, close, set, solid)
12
dense(adjective, solid, full, stiff)
9
thick(adjective, close, solid, full)
8
compressed(adjective, close, set, strong, hard)
7
solid(adjective, close, set, strong, hard)
6
compacted(verb, adjective, set, strong, hard)
5
concentrated(adjective, set, strong, hard)
5
impenetrable(adjective, close, set, hard)
4
consolidated(adjective, close, set, strong, hard)
4
hard(adjective, set, strong, solid)
2
rigid(adjective, set, strong, hard)
1
set(noun, adjective, strong, hard)
0
adamantine(adjective, set, strong, hard)
0
callous(adjective, set, strong, hard)
0
durable(adjective, stiff, rigid)
0
hardened(adjective, set, strong, hard)
0
indurate(adjective, set, strong, hard)
0
indurated(adjective, set, strong, hard)
0
inflexible(adjective, set, strong, hard)
0
iron(adjective, set, strong, hard)
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APASmart Define. (2015). packed thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/packed/thesaurus/synonyms
ChicagoSmart Define. 2015. "packed thesaurus" https://smartdefine.org/packed/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, packed thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/packed/thesaurus/synonyms>.
MLASmart Define. "packed thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/packed/thesaurus/synonyms>