Definition
A Latin term from Roman law meaning "beyond price" or "incapable of being valued." Applied to things so inherently precious—whether by nature, sentiment, religious significance, or public importance—that no monetary equivalent can adequately represent their worth. In legal contexts, impretiabilis describes objects or interests that resist ordinary valuation and therefore cannot be the subject of standard commercial exchange or damage calculation.
Common Confusion
Impretiabilis should not be confused with IMPRIMATUR, the term for a license or official permission to print and publish a work. Because Rapalje & Lawrence and some historical dictionaries list these terms in immediate sequence—and occasionally in compressed format—the two distinct concepts can appear to be related or even part of a single entry. They share only alphabetical proximity. Imprimatur concerns censorship, publication authority, and freedom of the press; impretiabilis concerns the incapacity of certain things to be assigned a monetary value.
Why It Matters in Research
This term surfaces most often in historical legal materials dealing with Roman civil law principles inherited by common law and equity courts, particularly in discussions of valuation, damages, and inalienability. Researchers working in damages law will find impretiabilis relevant to cases where courts declined to set a market price for certain sacred objects, relics, heirlooms, public monuments, or bodies of water—essentially invoking the concept without always using the Latin term.
The concept also connects to inalienability doctrine: things deemed impretiabilis were sometimes held to be outside commerce entirely (res extra commercium), meaning they could not be the subject of sale or conventional property transfer. Researchers tracing the intellectual lineage of modern doctrines like the pricelessness of certain constitutional rights, the non-commodification of the human body, or environmental valuation debates may find impretiabilis a useful historical anchor point.
A trap for researchers: in historical dictionaries and encyclopedias, this term occasionally appears adjacent to entries on IMPRIMATUR, since the two Latin terms were sometimes listed consecutively. Rapalje & Lawrence runs them together in a single compressed entry. Do not conflate the two; impretiabilis concerns valuation and intrinsic worth, while imprimatur concerns licensing authority over printed works. The adjacency is purely alphabetical.
Researchers should also note that while impretiabilis is a genuine Roman law concept, it rarely appears as a formal operative term in Anglo-American common law opinions. Its legal significance in English-language sources is largely doctrinal and theoretical rather than positively enacted. It appears most reliably in treatises engaging Roman or civil law, in ecclesiastical law discussions, and in nineteenth-century American legal dictionaries that drew heavily on civilian sources.
Historical Dictionary Support
All three source dictionaries agree on the core definition: "beyond price" or "invaluable." Black's (1st ed.) and Black's (2nd ed.) are essentially identical in their treatment, offering a brief Latin gloss with no further elaboration. Black's (1st ed.) notably appends material on IMPRIMATUR immediately after, which is an unrelated term; this is an artifact of alphabetical sequencing rather than any legal connection between the two concepts.
Rapalje & Lawrence follows the same compact format, rendering the definition as simply "invaluable" with no surrounding context or legal application. None of the three historical sources develop the Roman law background from which the term derives, leaving researchers without guidance on how the concept was applied in practice or which bodies of law invoked it. This is a meaningful gap: the term carries considerably more jurisprudential content in the civil law tradition than any of these entries convey.