demonstrably

[ dih-mon-struh-blee ]

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.

Other Words From

• non·de·mon·stra·bly adverb
• un·de·mon·stra·bly adverb

Word History and Origins

Origin of demonstrably¹

demonstrab(le) ( def ) + -ly

Example Sentences

In her own remarks yesterday in the nation’s capital, Vice President Kamala Harris did something her Republican opponent was demonstrably incapable of: concede.

From Salon

“These statements are demonstrably false. Plaintiffs never pled guilty to any crime and were subsequently cleared of all wrongdoing. Further, the victims of the Central Park assaults were not killed,” the filing reads.

From Salon

You didn’t have to cover American politics very long to realize that politicians lied, prevaricated and said things that were demonstrably untrue all the time.

From Salon

“That’s in part because of the unfavorability but also because there seems to be this pattern of saying things that are offensive or demonstrably untrue and then doubling down on them.”

From Los Angeles Times

That’s even if America has not been attacked, and even if a president is demonstrably unfit.

From Los Angeles Times