un·​guess·​able | \ ˌən-ˈge-sə-bəl How to pronounce unguessable (audio) \

Definition of unguessable

: impossible to guess an unguessable outcome

Examples of unguessable in a Sentence

Recent Examples on the Web

Vingcard's system encodes a unique cryptographic key into each keycard—and another into every hotel's master keys—that are all designed to be unguessable. Andy Greenberg, WIRED, "A One-Minute Attack Let Hackers Spoof Hotel Master Keys," 25 Apr. 2018

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

First Known Use of unguessable

1832, in the meaning defined above

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Time Traveler for unguessable

The first known use of unguessable was in 1832

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a usually brief trip or an expedition

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