однозначный, однозначно определяемый; уникальный
уникальный, чаще оригинальный (например, подход, способ)
1. прилагательное 1) уникальный, единственный в своём роде, исключительный Например: unique opportunity — уникальная возможность unique equipment — уникальное оборудование This letter is a unique document of incalculable value. — Это письмо - уникальный документ огромной ценности. Синоним(ы): unequalled, unparalleled, unrivalled 2) (unique to) индивидуальный, специфичный, присущий только данному региону или человеку Например: a trend that is unique to Great Britain — тенденция, наблюдаемая только в Великобритании 3) [математика] единственно возможный; однозначный, однозначно определяемый Например: unique correspondence — однозначное соответствие The problem has a unique solution. — Задача имеет единственное решение. 2. имя существительное [устаревшее] 1) редкий, единственный в своём роде экземпляр (чего-либо), уникум; единственный случай, уникальный факт Например: It is a unique in English history. — В английской истории это единственное в своём роде событие. 2) уникум (о человеке)
adjective Etymology: French, from Latin unicus, from unus one — more at one 1. being the only one; sole Example: his unique concern was his own comfort Example: I can't walk away with a unique copy. Suppose I lost it? — Kingsley Amis Example: the unique factorization of a number into prime factors 2. a. being without a like or equal; unequaled Example: could stare at the flames, each one new, violent, unique — Robert Coover b. distinctively characteristic; peculiar 1 Example: this is not a condition unique to California — Ronald Reagan 3. unusual Example: a very unique ball-point pen Example: we were fairly unique, the sixty of us, in that there wasn't one good mixer in the bunch — J. D. Salinger Synonyms: see strange • uniquely adverb • uniqueness noun Usage: Many commentators have objected to the comparison or modification (as by somewhat or very) of unique, often asserting that a thing is either unique or it is not. Objections are based chiefly on the assumption that unique has but a single absolute sense, an assumption contradicted by information readily available in a dictionary. Unique dates back to the 17th century but was little used until the end of the 18th when, according to the Oxford English Dictionary, it was reacquired from French. H. J. Todd entered it as a foreign word in his edition (1818) of Johnson's Dictionary, characterizing it as “affected and useless.” Around the middle of the 19th century it ceased to be considered foreign and came into considerable popular use. With popular use came a broadening of application beyond the original two meanings (here numbered 1 and 2a). In modern use both comparison and modification are widespread and standard but are confined to the extended senses 2b and 3. When sense 1 or sense 2a is intended, unique is used without qualifying modifiers.
A portable job control language.