117 entries under idiom topic. ×

3
of one mind(expression, adjective, agree, consistent)
3
out of sight(expression, adjective, good, great)
3
with one voice(expression, adjective, agree, consistent)
2
at one(adjective, agree)
2
like a rock(expression, adjective, adverb, complete)
2
set in stone(expression, adjective, calm, set)
2
solid state(noun, expression)
2
state of matter
1
hard as nails(expression, adjective, set, strong)
1
able to pay
1
as one(expression, adjective, agree, consistent)
1
at one with
1
both feet on the ground(expression, reasonable, useful, realistic)
1
carried by acclamation
1
fine and dandy
1
in complete accord(expression, consistent, universal, united)
1
in fine feather(expression, adjective, strong, sound)
1
in good order(expression, adjective, perfect, safe)
1
in the know(expression, sound, knowledgeable, cultured)
1
made of iron
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APASmart Define. (2016). solid thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/solid/thesaurus/synonyms
ChicagoSmart Define. 2016. "solid thesaurus" https://smartdefine.org/solid/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, solid thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/solid/thesaurus/synonyms>.
MLASmart Define. "solid thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/solid/thesaurus/synonyms>