233 entries under solid topic. ×

8
sure(adjective, calm, strong, secure, tough)
7
close(verb, adjective, hold, fix, hard)
7
deep-rooted(adjective, calm, strong, substantial)
7
gelatinize(verb, form, change, develop)
7
jelly(verb, form, change, develop)
7
solidified(verb, adjective, hard, tough, firm)
7
tough(adjective, calm, strong, hard, severe)
7
unchangeable(adjective, calm, strong, secure, flat)
6
adjusted(verb, adjective, strong, complete)
6
changeless(adjective, severe, firm, harsh)
6
compact(verb, adjective, close, fix, hard)
6
curdle(verb, close, change, fix, settle)
6
in the bag(expression, adjective, idiom, firm)
6
indurate(verb, adjective, close, fix, hard)
6
jelled(verb, adjective, hard, tough, firm)
6
loyal(adjective, strong, firm, true)
6
staunch(adjective, calm, strong, secure, tough)
6
tight(adjective, close, strong, hard, secure)
5
anchored(verb, adjective, calm, strong, secure)
5
deep(adjective, activity, intense, heavy)
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APASmart Define. (2016). set thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/set/thesaurus/synonyms
ChicagoSmart Define. 2016. "set thesaurus" https://smartdefine.org/set/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, set thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/set/thesaurus/synonyms>.
MLASmart Define. "set thesaurus" 1 March 2016. Web. 20 September 2026. <https://smartdefine.org/set/thesaurus/synonyms>