irrefragable
Cannot be denied
Irrefragable means impossible to refute or deny—unassailable.
The word appears in formal or legal contexts: an irrefragable argument, irrefragable proof.
It's rare and literary, carrying more weight than simply "undeniable" but meaning roughly the same thing.
Impossible to deny
- unassailableImpossible to attack successfully
- undeniableImpossible to contradict
- unarguableImpossible to dispute
- inarguableImpossible to contest
unanswerable · unchallengeable · incontestable · unquestionable · unimpeachable · certain · absolute · definitive
Ending all debate
- decisiveQuick to conclude
- settledNo longer in question
- resolvedFirmly decided upon
- unappealableNot subject to review
binding · irreversible · unchangeable · immutable · permanent · unalterable · fixed · absolute
Accepted as standard
- officialAuthority-sanctioned person or status
- bindingLegally or morally required
- definitiveSettling a question finally
- magisterialDomineering and authoritative
dogmatic · decreed · pronounced · established · orthodox · sanctioned · certified · authenticated
Demonstration of truth
- argumentReasoned case or dispute
- reasoningDrawing logical conclusions
- deductionConclusion from premises
- inferenceConclusion reached through reasoning
demonstration · syllogism · premise · conclusion · validity · coherence · proposition · axiom
incontrovertible
Impossible to deny
- unassailableImpossible to attack successfully
- undeniableImpossible to contradict
- unarguableImpossible to dispute
inarguable · unanswerable · unchallengeable · incontestable · unquestionable · unimpeachable · certain · absolute · definitive · conclusive
conclusive
Ending all debate
unappealable · binding · irreversible · unchangeable · immutable · permanent · unalterable · fixed · absolute · ultimate
canonical
Accepted as standard
- officialAuthority-sanctioned person or status
- bindingLegally or morally required
- definitiveSettling a question finally
magisterial · dogmatic · decreed · pronounced · established · orthodox · sanctioned · certified · authenticated · verified
proof
Demonstration of truth
- argumentReasoned case or dispute
- reasoningDrawing logical conclusions
- deductionConclusion from premises
inference · demonstration · syllogism · premise · conclusion · validity · coherence · proposition · axiom · theorem
irrefragablerefutable
Capable of being disproven
disputable · controvertible · debatable · arguable · contestable
irrefragabledoubtful
Uncertain of truth
dubious · uncertain · doubtable · questionable · problematic