adamantine
Impossible to break
Adamantine means extremely hard, unbreakable, or unyielding.
The word derives from adamas, an ancient term for the hardest substance known—later applied to diamond.
An adamantine will cannot be bent.
Adamantine resolve suggests determination that nothing can shatter.
The word is literary and formal, evoking mythic or poetic strength rather than everyday toughness.
Impossible to damage
- impenetrableImpossible to pass through
- indestructibleImpossible to damage permanently
- ironcladImpossible to dispute
- rock-solidUtterly firm and reliable
reinforced · heavy-duty · tempered · hardened · forged · dense · compact · solid
Steady and unchanging
- unshakableImpossible to disturb
- steadfastFirmly loyal, unshakeable
- determinedFirmly committed to purpose
- inflexibleUnable to bend
unyielding · unbending · immovable · unflinching · indomitable · iron-willed · resolute · tenacious
- mithrilFictional ultralight strong metal
- unobtaniumFictional ideal substance
- kryptonitePersonal weakness or vulnerability
- dilithiumMolecule with two lithiums
Wolverine · alloy · indestructible · sci-fi · fantasy · Marvel · comics
Intensely bright or gifted
- gleamingReflecting light brightly
- sparklingEmitting small bright flashes
- crystallineClear, ordered, brilliant
- facetedHaving multiple flat surfaces
prismatic · refraction · luster · clarity · radiant · glittering · shimmering
Lasting forever, indestructible
- everlastingLasting for all time
- eternalLasting without end
- timelessUnaffected by eras
- agelessWithout apparent deterioration
immortal · perpetual · permanent · unchanging · constant · unfaltering · unflagging · indefatigable
unbreakable
Impossible to damage
- impenetrableImpossible to pass through
- indestructibleImpossible to damage permanently
- ironcladImpossible to dispute
rock-solid · reinforced · heavy-duty · tempered · hardened · forged · dense · compact · solid · rigid
unwavering
Steady and unchanging
- unshakableImpossible to disturb
- steadfastFirmly loyal, unshakeable
- determinedFirmly committed to purpose
inflexible · unyielding · unbending · immovable · unflinching · indomitable · iron-willed · resolute · tenacious · dogged
vibranium
- mithrilFictional ultralight strong metal
- unobtaniumFictional ideal substance
- kryptonitePersonal weakness or vulnerability
dilithium · Wolverine · alloy · indestructible · sci-fi · fantasy · Marvel · comics
brilliant
Intensely bright or gifted
- gleamingReflecting light brightly
- sparklingEmitting small bright flashes
- crystallineClear, ordered, brilliant
faceted · prismatic · refraction · luster · clarity · radiant · glittering · shimmering
imperishable
Lasting forever, indestructible
- everlastingLasting for all time
- eternalLasting without end
- timelessUnaffected by eras
ageless · immortal · perpetual · permanent · unchanging · constant · unfaltering · unflagging · indefatigable · persistent
Hephaestus
Greek forge deity
- PrometheusFire-stealing benefactor of mortals
- TartarusDeepest realm of punishment
- CronusTitan king, father-devourer
sickle · chains · unforged · divine · Olympian · celestial · godly · legendary · ancient · primordial
- Fictional Armormithril, plate armor
- Fictional Materialsmithril, unobtainium, unobtanium, dilithium, kryptonite
- magic materialsmithril, heartstone, crystals
- magical substancesmana, ichor, ambrosia, nectar, ether
- metal folklorealchemy, cold iron, cursed gold, fairy gold, leprechaun gold
- mineral propertiesvitreous, metallic, pearly, resinous, waxy
adamantineyielding
Bending under pressure
relenting · pliant · compliant · acquiescent · submissive
adamantinesoft
Yielding to touch
soft-hearted · tender · gentle · warm · compassionate