inconceivable

[in-kuhn-see-vuh-buhl]

adjective

1. not conceivable; unimaginable; unthinkable

2. unbelievable; incredible.

inconceivable

/ ˌɪnkənˈsiːvəbəl /

adjective

1. incapable of being conceived, imagined, or considered

Other Word Forms

• inconceivability noun
• inconceivableness noun
• inconceivably adverb

Word History and Origins

Origin of inconceivable¹

First recorded in 1625–35; in- ³ + conceivable

Example Sentences

But on her new album, “West End Girl,” Allen is neck-deep in a tragedy, attempting to keep her head above the all-consuming black sludge of inconceivable heartbreak.

Read more on Salon

“It’s just inconceivable to me that this will go away.”

Read more on Los Angeles Times

"It is almost inconceivable that this situation has been allowed to happen," the group posted on social media.

Read more on BBC

It’s unbearable enough as it is to be away from our loved ones for any reason; being separated forever, through no will of our own, is inconceivable.

Read more on Salon

While there are safeguards, anyone from a well-meaning loved one to a malicious scam artist can create fake versions of you that would have been inconceivable a few years ago.

Read more on The Wall Street Journal

Related Words

• extraordinary 
• implausible 
• impossible 
• improbable 
• incredible 
• mind-boggling 
• strange 
• unbelievable 
• unheard-of 
• unimaginable 
• unthinkable