127 entries under solid topic. ×

12
steady(adjective, good, close, strong, smooth)
12
sterling(adjective, feature, characteristic, good, strong)
12
unswerving(adjective, close, strong, smooth, tough)
11
fair(adjective, feature, characteristic, good, open)
10
definite(noun, adjective, good, strong, correct)
10
sound(adjective, good, clear, strong, correct)
10
sure(adjective, adverb, good, close, clear)
9
unerring(adjective, clear, correct, right, firm)
9
determined(adjective, good, clear, strong, tough)
9
high-principled(adjective, feature, characteristic, good, strong)
9
level(verb, adjective, direct, smooth, right)
9
positive(adjective, good, clear, strong, firm)
9
strict(adjective, good, close, strong, correct)
9
substantial(adjective, good, sound, right, reasonable)
9
unfailing(adjective, good, strong, honest)
8
regular(adjective, open, smooth, correct, right)
7
existent(adjective, physical, material, real)
7
smooth(adjective, direct, right, flat)
7
tangible(adjective, material, certain, substantial)
7
unequivocal(noun, adjective, good, strong, correct)
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APASmart Define. (2016). true thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/true/thesaurus/synonyms
ChicagoSmart Define. 2016. "true thesaurus" https://smartdefine.org/true/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, true thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/true/thesaurus/synonyms>.
MLASmart Define. "true thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/true/thesaurus/synonyms>