ISEE/SSAT Vocabulary Builder›Words›I›indubitable
ISEE/SSAThard
indubitable
too certain to be doubted or questioned
Synonyms
- certain
- indisputable
- undeniable
Antonyms
- doubtful
- questionable
- uncertain
indubitable in a sentence
The dated photographs provided indubitable proof that the building once stood there.
The telescope supplied indubitable confirmation of the planet's existence.
Where it comes from
From Latin indubitabilis, meaning 'not doubtful.'
Memory hook
IN-DUBITABLE has no DUBious doubt: it is unquestionably true.
Read it in context
- Answers Behind a Screen Social Science
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