stiprios
Stiprios is a Lithuanian word that functions as the feminine plural form of the adjective stiprus, meaning strong, sturdy, or powerful. It is used to describe feminine plural nouns and agrees with gender, number, and case in Lithuanian grammar.
In ordinary usage, stiprios appears most prominently in nominative and accusative cases with feminine plural nouns.
Grammar notes are common in discussions of Lithuanian adjectives. Stiprios changes form across cases and numbers
Stiprios is primarily a descriptive, evaluative term. It is not a proper noun or a fixed title,
See also: stiprus (masculine form of the same adjective) and stipriai (adverbial form meaning strongly).