Dictionary.com
Thesaurus.com
Showing results for certifiable. Search instead for unfertilisable.
Synonyms

certifiable

American  
[sur-tuh-fahy-uh-buhl, sur-tuh-fahy-] / ˈsɜr təˌfaɪ ə bəl, ˌsɜr təˈfaɪ- /

adjective

  1. capable of being certified.

  2. legally committable to a mental institution.

  3. Sometimes Facetious. fit or ready for an insane asylum.

  4. uncontrollable; insane.

    a certifiable desire.


certifiable British  
/ ˈsɜːtɪˌfaɪəbəl /

adjective

  1. capable of being certified

  2. fit to be certified as insane

"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

Other Word Forms

Etymology

Origin of certifiable

First recorded in 1840–50; certify + -able

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The movie “Project Hail Mary” has proven a certifiable blockbuster since its release last month, the highest-grossing Amazon film ever.

From The Wall Street Journal Apr. 3, 2026

If the definition of insanity is doing the same thing over and over again and expecting different results, then Dave Roberts is clearly certifiable.

From Los Angeles Times Sep. 27, 2025

It closed in the late 1970s and the building was divided up over time, with sections in effect removed from certifiable use and fire certificates amended accordingly.

From BBC Dec. 6, 2022

Whether you find that sentiment sweet or certifiable, “Fire of Love” offers up what may be the ultimate in marital consummation.

From Washington Post Jul. 19, 2022

This young writer assures me that she will be truthful and certifiable in giving the honest-to-goodness scoop each and every week.

From "Moon Over Manifest" by Clare Vanderpool

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training