Synonyms|272Antonyms|89|Broader|3Narrower|0Related|401
3
clear-cut(adjective, solid, certain, straightforward, definite)
3
decided(adjective, solid, certain, straightforward, definite)
3
firm(noun, adjective, clear, hard, sound)
3
fixed(adjective, clear, sound, firm, plain)
3
good(adjective, true)
3
probable
3
set(adjective, clear, sound, firm, solid)
3
very(adjective, correct, right, exact, pure)
2
conclusive
2
confirmed(adjective, solid, certain, sure, confident)
2
decisive(adjective, certain)
2
explicit(adjective, straightforward, precise, unambiguous)
2
indubious
2
infallible
2
manifest(adjective, sound, certain, true, definite)
2
original(adjective, physical, material, true, actual)
2
past dispute(expression, idiom, certainty)
2
plain(adjective, clear, right, straightforward, precise)
2
proved
2
settled(adjective, solid, certain, sure, confident)
For more, visit Undoubted on Power Thesaurus
11 years ago|5.9k views|share |citing 
APASmart Define. (2015). undoubted thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/undoubted/thesaurus/synonyms
ChicagoSmart Define. 2015. "undoubted thesaurus" https://smartdefine.org/undoubted/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, undoubted thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/undoubted/thesaurus/synonyms>.
MLASmart Define. "undoubted thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/undoubted/thesaurus/synonyms>