Synonyms of conclusive in English:

conclusive


See definition of conclusive

adjective

1‘conclusive proof’

SYNONYMS
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
ANTONYMS

inconclusive, unconvincing

2‘a conclusive 5–0 win’

SYNONYMS
emphatic, resounding
informal thumping, thundering
ANTONYMS

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