97 entries under solid topic. ×

6
tough(adjective, person, set, body, strong)
6
unyielding(adjective, set, strong, hard, tough)
5
impassable(adjective, resistant, impervious)
5
impermeable(adjective, set, hard, tough, firm)
5
obscure(adjective, gloomy, gray, complicated)
5
set(verb, adjective, strong, hard, tough)
4
cohesive(adjective, strong, hard, stiff)
4
compacted(adjective, set, strong, hard, firm)
4
consolidated(adjective, set, strong, hard, firm)
4
jam-packed(adjective, full, compact, tight)
4
nonporous(hard, rigid, resistant, impervious)
4
rugged(adjective, set, strong, hard, tough)
4
stable(adjective, close, strong, hard, firm)
3
clotted(adjective, set, heavy, deep)
3
congested(adjective, full, compact, tight)
3
cramped(adjective, firm, full, stiff)
3
flinty(adjective, strong, hard, tough)
3
inflexible(adjective, close, set, strong, hard)
3
physical(adjective, strong, hard, substantial)
3
solidified(adjective, set, hard, tough)
11 years ago|30k views|share |citing 
APASmart Define. (2015). dense thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/dense/thesaurus/synonyms
ChicagoSmart Define. 2015. "dense thesaurus" https://smartdefine.org/dense/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, dense thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/dense/thesaurus/synonyms>.
MLASmart Define. "dense thesaurus" 17 July 2015. Web. 22 September 2026. <https://smartdefine.org/dense/thesaurus/synonyms>