28 entries under tough topic. ×

4
fine-grained(adjective, hard, solid, rigid)
2
close(adjective, set, hard, solid)
1
compact(adjective, close, set, hard)
1
compressed(adjective, set, hard, firm)
1
concentrated(adjective, set, hard, firm)
1
concrete(adjective, hard, solid, rigid)
1
condensed(adjective, hard, solid, rigid)
1
congealed(adjective, hard, solid, rigid)
1
dense(adjective, set, hard, firm)
1
hardened(adjective, hard, solid, rigid)
1
impenetrable(adjective, close, set, hard)
1
impermeable(adjective, close, set, hard)
1
impervious(adjective, hard, solid, rigid)
1
inelastic(adjective, hard, solid, rigid)
1
jelled(adjective, hard, solid, rigid)
1
nonporous(adjective, hard, solid, rigid)
1
refractory(adjective, hard, solid, rigid)
1
set(adjective, hard, solid, rigid)
1
solid(adjective, close, set, hard)
1
solidified(adjective, hard, solid, rigid)
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APASmart Define. (2013). close-grained thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/close-grained/thesaurus/synonyms
ChicagoSmart Define. 2013. "close-grained thesaurus" https://smartdefine.org/close-grained/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2013, close-grained thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/close-grained/thesaurus/synonyms>.
MLASmart Define. "close-grained thesaurus" 28 June 2013. Web. 25 September 2026. <https://smartdefine.org/close-grained/thesaurus/synonyms>