conclusive
adjective
[ kənˈkluːsɪv ]
• (of evidence or argument) having or likely to have the effect of proving a case; decisive.
• "conclusive evidence"
Similar:
incontrovertible,
incontestable,
irrefutable,
unquestionable,
undeniable,
indisputable,
unassailable,
beyond dispute,
beyond question,
beyond doubt,
beyond a shadow of a doubt,
certain,
decisive,
convincing,
clinching,
definitive,
definite,
positive,
final,
ultimate,
categorical,
demonstrative,
unequivocal,
unarguable,
unanswerable,
uncontroversial,
airtight,
watertight,
Origin:
late 16th century (in the sense ‘summing up’): from late Latin conclusivus, from Latin conclus- ‘closed up’, from the verb concludere (see conclusion).