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

135 entries under adjective topic. ×

1
heavy-duty(strong, sound, tough, solid)
1
hopeful(strong, easy, solid, certain)
1
in fine feather(expression, idiom, strong, sound)
1
in the bag(expression, idiom, strong, easy)
1
legit(good, sound, right, reasonable)
1
locked on(expression, strong, easy, solid)
1
long-standing(steady, even, unchanging)
1
mighty(strong, great, sound, tough)
1
muscular(strong, sound, tough, solid)
1
nailed down(expression, strong, easy, solid)
1
on ice(expression, strong, easy, solid)
1
prudent(reason, sane)
1
puissant
1
reassured(strong, easy, solid, certain)
1
reinforced(strong, sound, tough, solid)
1
resolute(calm, strong, secure, easy)
1
right(good, sound, reasonable, rational)
1
robust(strong, sound, secure, tough)
1
sage(reason, sane)
1
sanguine(strong, easy, solid, certain)
For more, visit Well-founded on Power Thesaurus
10 years ago|5.4k views|share |citing 
APASmart Define. (2016). well-founded thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/well-founded/thesaurus/synonyms
ChicagoSmart Define. 2016. "well-founded thesaurus" https://smartdefine.org/well-founded/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, well-founded thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/well-founded/thesaurus/synonyms>.
MLASmart Define. "well-founded thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/well-founded/thesaurus/synonyms>