Learn Portuguese (Portugal): O ambiente aqui é sempre muito agradável. - The environment here is always very pleasant.

The adjective agradável comes from the verb agradar (to please) combined with the suffix -vel. This suffix works just like "-able" or "-ible" in English, turning a verb into an adjective that means "capable of" or "causing" that action. Therefore, something that causes pleasure is agradável (pleasant).

How would the adjective agradável change if we were talking about multiple places?

Adjectives ending in -el drop the -l and add -is in the plural. If the subject were plural, such as os ambientes, the adjective would become agradáveis. Notice that the written accent mark stays on the á to maintain the correct stress.

Why does this sentence use é instead of está to describe the atmosphere?

We use é (from the verb ser) because the sentence includes sempre (always), showing that being pleasant is a permanent or built-in characteristic of this place. If the atmosphere were only pleasant just for today, you would use a form of estar to show a temporary state, like o ambiente aqui está muito agradável hoje.

Does ambiente only refer to the natural environment (nature)?