No. 5,187 in Russian
неофициальными
"Unofficial" or "informal".
In a sentence
Эти данные считаются неофициальными и их точность не гарантируется.
These data are considered unofficial and their accuracy is not guaranteed.
неофициальными is used as an adjective in instrumental plural form, describing 'данные' (data), indicating their unofficial nature.
Совещания были неофициальными, поэтому строгого регламента не придерживались.
The meetings were informal, so strict regulations were not followed.
неофициальными serves as an adjective in instrumental plural form, describing 'совещания' (meetings), showing their informal nature.
Они поделились неофициальными источниками информации, которых не найти в публикациях.
They shared unofficial sources of information that cannot be found in publications.
неофициальными modifies 'источниками' (sources) as an adjective in instrumental plural form, characterizing the sources as being unofficial.
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