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

Derived Forms

• nondemonstrably
  adverb
• undemonstrably
  adverb

Etymology

Origin of demonstrably

demonstrab(le) ( def. ) + -ly

Example Sentences

Because what we’re left with is a piece that asks us to take the problem seriously while the publication demonstrably does not.

From Slate • May 5, 2026

"In the Acting category, only roles credited in the film's legal billing and demonstrably performed by humans with their consent will be considered eligible," the Academy said.

From Barron's • May 1, 2026

A senior U.S. official said the blockade is demonstrably crushing Iran’s economy—it is straining to store its unsold oil—and sparked fresh outreach by the regime to Washington.

From The Wall Street Journal • Apr. 29, 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

As Bolles continued, Joe clenched his fist at his side and gave it a subtle little pump, unwilling to celebrate any more demonstrably than that in front of the boys who had not been selected.

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown