What does "adagio" signify in music tempo?

Adagio signifies a slow tempo in music, typically indicating that the piece should be played leisurely and with a relaxed feel. This term is often used within the context of musical compositions to convey a specific mood or character, allowing the performer to express emotions effectively through the music.

In contrast, terms such as "fast," "moderate," and "very fast" refer to quicker tempos that indicate varying levels of speed, which do not align with the definition of adagio. The distinction in tempo markings is essential for musicians to interpret and perform music accurately, making the understanding of terms like adagio crucial for nuanced musical expression.