Lento or Ritardando
The Italian musical term for a cheerful or fast tempo is "Allegro."
Quasi is an Italian musical term meaning: As if, resembling
Lento is the musical term for slow musical passages
The musical term that means to slow tempo is ritardando. If you'd like to slow the tempo very quickly you'd call it a molto ritardando.
A musical term from the Italian Crescendo meaning increasing. From Latin Crescere also meaning to increase. Adopted as a musical term about 1770
Ritardando is a musical term meaning to gradually slow down in tempo.
moderato e grazioso
Musical notation usually (but not always) uses Italian. quite = molto (meaning very) quiet = tranquillo (meaning peaceful), tacet (meaning silent)
I can't be sure but I think lento means slow.
The Italian term Largo means that a piece should be played slowly. It should be not very slow as Grave. This term is frequently used in the middle movement of Baroque concertos and slow piano pieces (selected nocturnes and preludes by Chopin).
" sempre ".
Bradypepsia is the medical term meaning slow digestion.