extremely important, to the point that it is not allowed to be condemned or changed
sacrosanto
unwilling or unable to change because of tradition or convention
ottuso, rigido
sluggish or falling behind in progress, development, or pace compared to others
lento, ritardatario
a style of playing or singing musical notes with short, distinct intervals between them
staccato, separato
peaceful and calm, not easily excited, irritated, angered, or upset
placido
feeling calm and peaceful, without any disturbances or things that might be upsetting
tranquillo, calmo
acting violently or irrationally due to extreme anger or excitement
frenetico
bored or indifferent due to overexposure to worldly pleasures or experiences
blasé, indifferente
(of a time) ideal for achieving a particular purpose or reaching success
opportuno
done spontaneously or without prior preparation
improvvisato, spontaneo