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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

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 next day, Cuban President Miguel Diaz-Canel warned that "any external aggressor will encounter an unbreakable resistance."

From Barron's • Mar. 21, 2026

On a recent winter night, I walked the stretch of Christmas Tree Lane past lit-up signs that memorialized Altadena’s unbreakable spirit.

From Los Angeles Times • Jan. 7, 2026

Having the world’s reserve currency, however, isn’t the unbreakable shield many assume.

From The Wall Street Journal • Nov. 30, 2025

The prime minister's official spokesman added that the next 48 hours would see an "unbreakable friendship reach new heights".

From BBC • Sep. 17, 2025

I spoke to a great crowd at Yankee Stadium, telling them that an unbreakable umbilical cord connected black South Africans and black Americans, for we were together children of Africa.

From "Long Walk to Freedom" by Nelson Mandela