unbreakable
Impossible to destroy
Unbreakable means impossible to break—literally or figuratively.
An unbreakable plate won't shatter when dropped.
An unbreakable bond between friends endures any strain.
An unbreakable record seems beyond anyone's ability to surpass.
An unbreakable code resists all attempts at decryption.
The word often carries a note of admiration or defiance: Her spirit was unbreakable.
Impossible to damage permanently
- shatterproofResistant to breaking
- sturdySolidly built, durable
- robustStrong and durable
- toughDurable and strong
rugged · heavy-duty · reinforced · hardened · toughened · armored · fortified · well-built
Unable to be affected
- invulnerableImmune to all harm
- impregnableImpossible to capture
- unconquerableImpossible to defeat
- unassailableImpossible to attack successfully
untouchable · indomitable · insurmountable · unstoppable · undefeatable · adamantine · ironclad · impenetrable
Able to recover quickly
- tenaciousStubbornly determined to continue
- undauntedCourageously persistent despite difficulty
- steadfastFirmly loyal, unshakeable
- unyieldingRefusing to give way
determined · resolute · unwavering · indomitable · persevering · gritty · stalwart · unflinching
Unable to be divided
- unshakeableImpossible to disturb
- steadfastFirmly loyal, unshakeable
- loyalFirm in allegiance
- devotedLoyally and lovingly attached
enduring · lasting · permanent · eternal · ironclad · rock-solid · deep-rooted · unwavering
Legally or morally required
- sacredWorthy of reverence
- solemnSerious and dignified
- swornBound by formal promise
- ironcladImpossible to dispute
inviolable · absolute · firm · unconditional · guaranteed · pledged · committed · steadfast
indestructible
Impossible to damage permanently
- shatterproofResistant to breaking
- sturdySolidly built, durable
- robustStrong and durable
tough · rugged · heavy-duty · reinforced · hardened · toughened · armored · fortified · well-built · hard-wearing
impervious
Unable to be affected
- invulnerableImmune to all harm
- impregnableImpossible to capture
- unconquerableImpossible to defeat
unassailable · untouchable · indomitable · insurmountable · unstoppable · undefeatable · adamantine · ironclad · impenetrable · immune
resilient
Able to recover quickly
- tenaciousStubbornly determined to continue
- undauntedCourageously persistent despite difficulty
- steadfastFirmly loyal, unshakeable
unyielding · determined · resolute · unwavering · indomitable · persevering · gritty · stalwart · unflinching · unshakeable
inseparable
Unable to be divided
- unshakeableImpossible to disturb
- steadfastFirmly loyal, unshakeable
- loyalFirm in allegiance
devoted · enduring · lasting · permanent · eternal · ironclad · rock-solid · deep-rooted · unwavering · committed
binding
Legally or morally required
ironclad · inviolable · absolute · firm · unconditional · guaranteed · pledged · committed · steadfast · trustworthy
- Indestructiblediamond, titanium, adamantium, vibranium, armor
- durabilitytoughness, durable, sturdiness, robustness, sturdy
- strength wordsstrong, powerful, mighty, potent, robust
- toughnessgrit, stamina, endurance, tenacity, resilience
- tough traitstough, resilient, fearless, brave, courageous
- protective propertieswaterproof, fireproof, bulletproof, shatterproof, dustproof
- unbreakable bondConnection impossible to sever
- unbreakable code
- unbreakable spirit