silnými

Silnými is the instrumental plural form of the Czech and Slovak adjective silný, meaning "strong" or "powerful." It is used when silný modifies plural nouns in the instrumental case, typically to indicate the means or manner by which an action is performed, or to describe a quality of a plural subject.

Common usages include phrases such as silnými rukami (with strong hands) and silnými lidmi (with strong people). The form also appears in figurative expressions, for example to denote strong arguments or strong influence.

In Czech, silný changes across cases and numbers, and silnými is the instrumental plural form used with masculine, feminine, and mixed-gender plural nouns. In Slovak, the form is identical and serves the same function, reflecting shared Slavic inflection patterns.

Origins: silný is a native Slavic adjective with cognates in related languages; modern usage covers physical strength as well as metaphorical intensity. Silnými remains a standard form across registers, from journalism to literature and everyday speech.