Synonyms|713Antonyms|152|Broader|9Narrower|8Related|663

88 entries under solid topic. ×

1
jelled(adjective, set, hard, tough)
1
jellied(adjective, set, heavy, deep)
1
ossified(adjective, set, heavy, deep)
1
set(adjective, hard, tough, firm)
1
short(adjective, close, sound, fast)
1
syrupy(adjective, set, heavy, deep)
1
thickened(adjective, set, heavy, deep)
1
turbid(adjective, dull, set, dark)
1
vitrified(adjective, set, heavy, deep)
0
appressed(adjective, tight, dense, compressed)
0
bunched(adjective, tight, dense, compressed)
0
circumscribed(adjective, close, short, substantial)
0
confined(adjective, close, short, substantial)
0
confining(adjective, close, short, substantial)
0
cramped(adjective, compact, tight, dense)
0
cropped(adjective, close, short, substantial)
0
fine-grained(hard, rigid)
0
inelastic(hard, rigid)
0
narrow(adjective, close, short, substantial)
0
packed in(expression, adjective, dense, packed)
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ChicagoSmart Define. 2015. "impenetrable thesaurus" https://smartdefine.org/impenetrable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, impenetrable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impenetrable/thesaurus/synonyms>.
MLASmart Define. "impenetrable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/impenetrable/thesaurus/synonyms>