Find Synonyms

unbreakable Synonyms

Another word for unbreakable

Choosing another word for unbreakable depends on context, so the 12 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adjective (Context 1)

Not liable to break, shatter, or be damaged easily.

Usage Example

"The laboratory switched to indestructible polycarbonate beakers to prevent accidents during student experiments."

Strongest
indestructible
shatterproof
Strong
infractible
durable
tough
sturdy

• adjective (Context 2)

Impossible to sever, violate, or overcome, such as a bond, rule, record, or encrypted code.

Usage Example

"Years of shared hardship forged an inviolable bond of trust between the two research partners."

Strongest
inviolable
Strong
indissoluble
unyielding
ironclad
unshakable
impenetrable

Opposites of unbreakable

The opposite of unbreakable shifts depending on context. Common opposites include:

breakable
fragile
frangible
brittle
tenuous
weak
delicate
flimsy
See all opposites of unbreakable

• Nearby Words

unbranded
unbreachable
unbreached
unbreakable
unbreathable
unbridgeable
unbridged

Cite this Entry

Wordmom. (2026). Synonyms for Unbreakable. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/unbreakable
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