Volatile

effimero

(temporary or ephemeral)

incostante

((of a price etc) variable or erratic)

instabile

((of a price etc) variable or erratic)

instabile

((of a situation) potentially violent)

suscettibile

(quick to become angry)

temporaneo

(temporary or ephemeral)

variabile

((of a price etc) variable or erratic)

volatile

(evaporating or vaporizing readily under normal conditions)

volatile

((informal) explosive)

volatile

((computing, of memory) whose content is lost when the computer is powered down)

volubile

(fickle)