unprovable

adjective

un·​prov·​able ˌən-ˈprü-və-bəl 

: unable to be proved : not provable

an unprovable theory

unprovably

ˌən-ˈprü-və-blē 

adverb

Examples of unprovable in a Sentence

Recent Examples on the Web

Hollywood has long been a petri dish of nasty rumors, and throughout its history, several unproven, or unprovable, salacious stories about movie stars have taken on lives of their own. — Julian Sancton, HollywoodReporter, 17 Sep. 2026

Myth seems to me to be doing something very strong, which is making an unprovable declaration about something. — Quanta Magazine, 17 Sep. 2026

Without that data, the patterns become invisible — or at least, unprovable. — Maia Niguel Hoskin, Forbes.com, 25 June 2026

His first incompleteness theorem states that there are necessarily unprovable statements in all sufficiently strong, contradiction-free systems. — Manon Bischoff, Scientific American, 26 May 2026

Word History

First Known Use

14th century, in the meaning defined above

Rhymes for unprovable

• movable
• moveable
• provable
• approvable
• immovable
• removable
• irremovable

Legal Definition

unprovable

adjective

un·​prov·​able

ˌən-ˈprü-və-bəl

: not provable