indubitable
Cannot be disputed
Indubitable means beyond doubt or question—absolutely certain.
The word is formal and emphatic, often with a slightly theatrical quality: The evidence was indubitable.
Someone might say indubitably as an arch way of agreeing, suggesting the point is so obvious it hardly needs stating.
Cannot be challenged
- incontrovertibleImpossible to deny
- irrefutableImpossible to disprove
- undeniableImpossible to contradict
- unassailableImpossible to attack successfully
indisputable · conclusive · definitive · unarguable · unimpeachable · proven · established · confirmed
Having recognized expertise
- categoricalUnconditional and explicit
- unequivocalAllowing one meaning only
- absoluteTotal, without qualification
- decisiveQuick to conclude
peremptory · definitive · unconditional · binding · final · conclusive · irrevocable · unappealable
Clearly apparent or displayed
- patentObvious; inventor's monopoly
- evidentClearly perceived or understood
- obviousEasily perceived, unmistakable
- apparentClearly seen or understood
clear-cut · transparent · self-evident · plain · visible · demonstrable · palpable · tangible
Total absence of doubt
- assuranceFirm promise or certainty
- confidenceSelf-assurance or trust
- surenessAbsence of uncertainty
- certitudeFirm belief, unshakable
positiveness · firmness · steadfastness · unwavering · resolute · convinced · persuaded · satisfied
unquestionable
Cannot be challenged
- incontrovertibleImpossible to deny
- irrefutableImpossible to disprove
- undeniableImpossible to contradict
unassailable · indisputable · conclusive · definitive · unarguable · unimpeachable · proven · established · confirmed · verified
authoritative
Having recognized expertise
- categoricalUnconditional and explicit
- unequivocalAllowing one meaning only
- absoluteTotal, without qualification
decisive · peremptory · definitive · unconditional · binding · final · conclusive · irrevocable · unappealable · canonical
manifest
Clearly apparent or displayed
- patentObvious; inventor's monopoly
- evidentClearly perceived or understood
- obviousEasily perceived, unmistakable
apparent · clear-cut · transparent · self-evident · plain · visible · demonstrable · palpable · tangible · verifiable
certainty
Total absence of doubt
- assuranceFirm promise or certainty
- confidenceSelf-assurance or trust
- surenessAbsence of uncertainty
certitude · positiveness · firmness · steadfastness · unwavering · resolute · convinced · persuaded · satisfied · secure
indubitabledoubtful
Uncertain of truth
dubious · questionable · dubitable · debatable · disputable