Synonyms|359Antonyms|67|Broader|1Narrower|0Related|355

100 entries under solid topic. ×

3
staunch(adjective, calm, strong, sound, secure)
3
steadfast(adjective, calm, strong, secure, easy)
3
unyielding(adjective, strong, sound, tough)
2
able(adjective, strong, sound, tough, easy)
2
absolute(adjective, strong, easy, flat)
2
anchored(calm, strong, secure, steady)
2
calm(strong, steady, substantial, even)
2
carefree(adjective, strong, easy, certain)
2
constant(calm, strong, steady, substantial)
2
definite(adjective, strong, easy, certain)
2
determined(adjective, strong, easy, certain)
2
forceful(adjective, strong, sound, tough)
2
heavy(adjective, strong, sound, tough)
2
tough(calm, strong, sound, heavy)
2
well-built(adjective, calm, strong, sound, secure)
2
well-made(adjective, strong, sound, tough)
1
abiding(calm, strong, steady, substantial)
1
able-bodied(adjective, strong, sound, tough)
1
active(adjective, strong, sound, tough)
1
athletic(adjective, strong, sound, tough)
For more, visit Well-founded on Power Thesaurus
10 years ago|5.4k views|share |citing 
APASmart Define. (2016). well-founded thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/well-founded/thesaurus/synonyms
ChicagoSmart Define. 2016. "well-founded thesaurus" https://smartdefine.org/well-founded/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, well-founded thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/well-founded/thesaurus/synonyms>.
MLASmart Define. "well-founded thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/well-founded/thesaurus/synonyms>