demonstrably

Adverb

In such a manner that is capable of being demonstrated, shown, or proved.

Japanese Meaning

証明可能な方法で / 実証できる形で / 論理的に正しいと示せる状態で

The new therapy was demonstrably more effective than the previous standard of care.

その新しい療法は従来の標準治療より実証可能なほど効果的だった。

Sense（1）

In such a manner that is capable of being demonstrated, shown, or proved.

more demonstrably

（ comparative ）

most demonstrably

（ superlative ）