nonexchangeable

Not able swapped

Nonexchangeable describes something that cannot be traded, swapped, or substituted for something else.

The term appears in financial and legal contexts where certain assets or rights are locked in: nonexchangeable bonds, nonexchangeable shares.

In scientific contexts, it describes molecules or particles that cannot be replaced or interchanged with others: nonexchangeable hydrogen atoms.

irreplaceable

heirloom

Inherited family treasure

priceless · treasured · invaluable · precious · sentimental · handcrafted · singular · matchless · unrepeatable · irreproducible

inalienable

birthright

Entitlement from origin

freedom · liberty · heritage · patrimony · citizenship · dignity · entitlement · prerogative · privilege · sanctity

fixed

fixed-rate

Interest that stays constant

locked-in · non-transferable · restricted · vested · pension · certificate · non-negotiable · binding · contractual · guaranteed

unique

distinctive

Readily identifiable, set apart

customized · fingerprint · DNA · signature · unreplicable · inimitable · proprietary · patented · copyrighted · trademarked

Opposites
exchangeability/tradability

nonexchangeableexchangeable

Able to be traded

transferable · swappable · negotiable · convertible · marketable

replaceability/substitutability

nonexchangeablereplaceable

Able to be exchanged

substitutable · interchangeable · equivalent · commutable · switchable

mutability/changeability

nonexchangeablechangeable

Capable of alteration

mutable · variable · alterable · modifiable · flexible

Family

exchange, exchangeable, exchanger, exchanges, exchanged, exchanging, interchangeable, interchange, interchanged

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Used worldwide · Timeless · Abstract · Rated G