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Synonyms

unbreakable

British  
/ ʌnˈbreɪkəbəl /

adjective

  1. not able to be broken

"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

Explanation

Something that can't be shattered, cracked, or easily destroyed is unbreakable. If your new cellphone is truly unbreakable, it will hold up no matter how many times you drop it on the floor. Use this adjective for anything that's physically durable, like the unbreakable glass used for car windshields or the unbreakable plastic bottles that ketchup comes in. It's impossible, or nearly impossible, to break these things. Things that are figuratively unbreakable can't be destroyed either, like the unbreakable bond between twins or the unbreakable secret code used by spies.

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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.

The band is best known for hits including Flying Without Wings, Fool Again and Unbreakable, with their latest album Wild Dreams, being released in 2021.

From BBC • Oct. 17, 2025

Appeared in the April 8, 2025, print edition as 'How Alex Ovechkin Broke An Unbreakable Record'.

From The Wall Street Journal • Apr. 7, 2025

It's a fitting small screen return for an Emmy winner best known as "Mad Men" ad executive Don Draper and Reverend Richard Wayne Gary Wayne on "Unbreakable Kimmy Schmidt."

From Salon • Jul. 27, 2023

To prepare, Polina attends Saturday classes at one of three Ukrainian schools set up in Poland by the group Unbreakable Ukraine.

From Seattle Times • Jun. 14, 2023

"Unbreakable until the terms of the spell are concluded."

From "Stardust" by Neil Gaiman