What is the term used for a pace that is lively and fast?

The term "allegro" is used in music to indicate a lively and fast pace. It is a directive for musicians that sets the mood and tempo of a piece, suggesting that it should be played in a bright and spirited manner. This term conveys a sense of quickness and energy, making it suitable for compositions that are meant to evoke excitement and movement.

In contrast, "andante" refers to a moderately paced tempo, typically described as walking speed, which does not convey the liveliness associated with allegro. "Adagio" indicates a slow tempo, evoking a more calm and relaxed feel, whereas "lento" also signifies a slow pace, often slower than adagio. Therefore, allegro is the term that best captures the essence of a lively and fast tempo in music.