1.
uniqueness; singularity; the quality of being the only one of its kind
The abstract quality of being unique — the property that nothing else is equivalent or a substitute. Used in philosophy, business, mathematics, database design, and identity-related discussions to describe the one-of-a-kind nature of a thing or value.
唯一性がある。
It has uniqueness.
この作品の唯一性が価値を生んでいる。
The uniqueness of this work is what gives it its value.
データベースではIDの唯一性を保証する必要がある。
In a database, you need to guarantee the uniqueness of IDs.
NFTはデジタルデータに唯一性を持たせる仕組みとして注目された。
NFTs drew attention as a mechanism for giving digital data a quality of uniqueness.
Composed of 唯一 (only one, sole) and the abstract-noun-forming suffix 〜性 (-ness, -ity).
USAGE:
唯一性 is an abstract, somewhat formal word. It is typical in writing — academic papers, legal and business documents, technical specifications, philosophical discussions — rather than casual conversation. In information-technology contexts it is often a translation of the English term "uniqueness" (as in unique key or unique identifier).
COMMON COLLOCATIONS:
- 唯一性を持つ: to have / possess uniqueness
- 唯一性を保証する: to guarantee uniqueness
- 唯一性がある: to be unique
- 唯一性を証明する: to prove uniqueness (mathematical sense)
SIMILAR WORDS:
- 独自性: originality, distinctiveness — emphasizes being one's own and different, not merely the only instance
- 一意性: uniqueness (mathematics, computing) — near-synonym, especially common in data modeling
- 特殊性: peculiarity, special nature — the quality of being special or particular, not necessarily one-of-a-kind
- 独創性: originality, creativity — uniqueness of idea or creation