[sur-tuh-fahy-uh-buh l, sur-tuh-fahy-]


capable of being certified.
legally committable to a mental institution.
Sometimes Facetious. fit or ready for an insane asylum.
uncontrollable; insane: a certifiable desire.

Origin of certifiable

First recorded in 1840–50; certify + -able
Related formscer·ti·fi·a·ble·ness, nouncer·ti·fi·a·bly, adverbun·cer·ti·fi·a·ble, adjectiveun·cer·ti·fi·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for certifiable

Contemporary Examples of certifiable

  • This is a certifiable situation in our collective nervous lap, and the time is now for.

    The Daily Beast logo
    ISIS and BS

    Amal Ghandour

    October 15, 2014

  • A 100 percent certifiable truth for sure—at least until the next study.

  • Unless you count the certifiable outlier, Michele Bachmann, Sarah Palin is the only one they have left.

    The Daily Beast logo
    How the GOP Loses Women

    Linda Hirshman

    November 1, 2009

Historical Examples of certifiable

  • The husband, though in a state of acute nervous disorder, is not certifiable.


    Horace Barnett Samuel

  • Short of cases of certifiable insanity there are a number of prisoners who are mentally defective.

British Dictionary definitions for certifiable



capable of being certified
fit to be certified as insane
Derived Formscertifiably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for certifiable

1846, from certify + -able. Meaning "so deranged as to be certifiably insane" is recorded from 1912.

Online Etymology Dictionary, © 2010 Douglas Harper

certifiable in Medicine




That can or must be certified. Used of infectious, industrial, and other diseases that are required by law to be reported to health authorities.
Relating to or being a person showing disordered behavior of sufficient gravity to justify involuntary mental hospitalization.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.