inalterada

Inalterada is the feminine singular form of the Portuguese adjective inalterado, meaning "not altered" or "unchanged." It is used to describe something that has remained in its original condition or state.

Origin and grammar: It is formed with the negating prefix in- added to alterar (to change) and the feminine suffix -ada. The masculine singular form is inalterado; the plural forms are inalterados (masculine) and inalteradas (feminine).

Usage: The term is common in scientific, legal, archival, and everyday language when distinguishing an original or untouched state from a modified one. Examples: "A amostra permanece inalterada" (The sample remains unaltered). "O arquivo está inalterado desde 1990" (The file has remained unchanged since 1990).

Related terms: Related forms include inalterável (unchangeable) and alterar (to change). In Portuguese, the adjective agrees with the noun in gender and number, so inalterada refers specifically to feminine nouns. The English equivalent is "unaltered."