demonstrable

adjective

de·​mon·​stra·​ble di-ˈmän(t)-strə-bəl 

1

: capable of being demonstrated

2

: apparent, evident

demonstrability

di-ˌmän(t)-strə-ˈbi-lə-tē 

noun

demonstrably

di-ˈmän(t)-strə-blē 

adverb

Synonyms of demonstrable

• verifiable
• confirmable
• empirical

Examples of demonstrable in a Sentence

There is no demonstrable evidence that the treatment is effective.

as a serious scientist, she is only interested in demonstrable phenomena

Recent Examples on the Web

The Wayans display an audacious willingness to wander into uncomfortable territory at a time when many entertainers are avoiding talking about such tensions altogether, and there’s demonstrable merit in that. —Alison Foreman, IndieWire, 4 June 2026

Because even though the president’s support among GOP voters has diminished, his demonstrable strength is still swaying the party’s primary contests. —David M. Drucker, Twin Cities, 31 May 2026

The union has a demonstrable track record of following through on its threats to strike. —Adam Crafton, New York Times, 29 May 2026

Second, target demonstrable harms while preserving the flexibility necessary for innovation. —Ion Stoica, Fortune, 27 May 2026

Word History

First Known Use

15th century, in the meaning defined at sense 1

Kids Definition

demonstrable

adjective

de·​mon·​stra·​ble di-ˈmän(t)-strə-bəl 

: capable of being demonstrated or proved

demonstrably

-blē 

adverb