demonstrably

American  

[dih-mon-struh-blee] / dɪˈmɒn strə bli /

adverb

1. in a way that can be demonstrated or proved.

   Privatization may be good for the government contractors who profit, but it's demonstrably less efficient in sectors like health care.

2. very evidently; obviously.

   Earlier in the game, the wide receiver was demonstrably agitated about not getting the ball enough.

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Other Word Forms

• nondemonstrably adverb
• undemonstrably adverb

Etymology

Origin of demonstrably

demonstrab(le) ( def. ) + -ly

Example Sentences

That has been countered by Ulmen's lawyer Schertz, who says the key points that have been reported about Ulmen are "demonstrably incomplete and incorrect" and subject to legal proceedings.

From BBC • Mar. 28, 2026

Democratic systems depend on something more demanding: the ability to tolerate disagreement, engage with complexity and distinguish between what feels true and what is demonstrably so.

From The Wall Street Journal • Mar. 26, 2026

Bovino’s apparent demotion came after he made demonstrably false claims that Pretti was aiming to kill federal agents.

From Salon • Mar. 5, 2026

Duterte's defence had argued the former leader's short-term memory was "demonstrably impacted" to the extent he could not "retain information for more than a short space of time."

From Barron's • Jan. 26, 2026

Having gotten everyone in a lather by interfering with nature for years, it has decided now not to interfere with nature at all, even when that interference would be demonstrably beneficial.

From "A Walk in the Woods" by Bill Bryson