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

Definition of demonstrable 

1 : capable of being demonstrated

Keep scrolling for more

Other Words from demonstrable

demonstrability \-​ˌmän(t)-​strə-​ˈbi-​lə-​tē \ noun
demonstrably \-​blē \ adverb

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

His comments contained at least four significant and demonstrable lies. Zack Beauchamp, Vox, "Trump told 4 lies about the inspector general report in one short Fox News hit," 15 June 2018 At White House direction, the Trump EPA recalculated those figures last year to include only demonstrable domestic benefits. The Editorial Board, WSJ, "Cost-Benefit Reform at the EPA," 6 June 2018 Still, Muhammad Ali's 1995 visit didn't seem to have any demonstrable effect on North Koreans' willingness to absorb state propaganda, although Ali did not exactly acquit himself well as a diplomat. Siobhán O'grady, Washington Post, "Dennis Rodman might go to Singapore. Here’s the story of his friendship with Kim Jong Un.," 6 June 2018 And those who say that Kim is just taking a leaf from his father’s playbook are overlooking demonstrable differences in their style. Anna Fifield, Washington Post, "Reporter’s notebook: Covering North Korea, daring to hope for change.," 11 June 2018 That evidence has sparked and informed demonstrable reform and innovation in teacher preparation programs. Valerie Strauss, Washington Post, "Is Congress about to gut funding for teacher preparation programs?," 22 May 2018 But for Trump to be an economic populist, his policies should reflect some demonstrable interest in improving the lives of working people. Sarah Jones, The New Republic, "The Myth of Trump’s Populist Revolt," 18 May 2018 Find something new to get obsessed with that benefits your life or the lives of others in a demonstrable and satisfying way, and then get really, really obsessed with it. Anna Pulley, RedEye Chicago, "Ask Anna: Quick and dirty winter advice," 26 Dec. 2017 Pruitt himself has gone on television telling the demonstrable lie that the science on climate change is unsettled. Basav Sen, Fortune, "Commentary: Scott Pruitt Should Be Impeached for Gutting the EPA, Not His First-Class Flights," 3 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'demonstrable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of demonstrable

15th century, in the meaning defined at sense 1

Keep scrolling for more

Learn More about demonstrable

Share demonstrable

Statistics for demonstrable

Look-up Popularity

Time Traveler for demonstrable

The first known use of demonstrable was in the 15th century

See more words from the same century

Keep scrolling for more

More Definitions for demonstrable



English Language Learners Definition of demonstrable

: able to be proven or shown : possible to demonstrate

More from Merriam-Webster on demonstrable

Thesaurus: All synonyms and antonyms for demonstrable

Comments on demonstrable

What made you want to look up demonstrable? Please tell us where you read or heard it (including the quote, if possible).


a soft lustrous wool fabric with mohair

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!