unconvertible

Resistant to change

Unconvertible means unable to be converted or changed into something else.

Currency that is unconvertible cannot be exchanged for other currencies: The country's unconvertible currency made foreign trade difficult.

The term applies to anything resistant to transformation—unconvertible file formats, unconvertible bonds, or unconvertible skeptics who won't change their minds.

immutable

unchangeable

Impossible to modify

irreversibleCannot be undone
permanentFixed without end
unalterableIncapable of being changed

fixed · indelible · unmodifiable · constant · stable · lasting · enduring · persistent · set · locked

fixed

nonconvertible

Cannot be exchanged

irredeemableImpossible to reform
perpetualLasting without interruption
debentureUnsecured debt instrument

bond · security · currency · exchange · nontransferable · unredeemable · locked-in · restricted · illiquid · nonexchangeable

resistant

nonreactive

Chemically inactive substance

inertInactive, physically or chemically
unreactiveNot prone to reactions
refractoryResistant to heat/control

unresponsive · impervious · immune · unaffected · unsusceptible · proof

Opposites

convertibility/transformability

unconvertibleconvertible

Car with folding roof

transformable · changeable · mutable · transmutable · alterable

exchangeability (financial/currency)

unconvertibleconvertible

Car with folding roof

exchangeable · transferable · redeemable · negotiable · liquid

adaptability/flexibility

unconvertibleadaptable

Able to adjust readily

flexible · versatile · adjustable · pliable · malleable

Family

convert, conversion, converted, convertible, converts, converting, unconverted, converter, convertibility

Familiarity: Top 500,000
Profile: Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G