In lang=en terms the difference between ritardando and rallentando
is that ritardando is gradually decelerating the tempo of a piece of music, especially at the end of the piece while rallentando is slackening; becoming slower (used as a musical direction).
As an adverb ritardando
is gradually decelerating the tempo of a piece of music, especially at the end of the piece.
As an adjective rallentando is
slackening; becoming slower (used as a musical direction).
ritardando
English
Alternative forms
* Abbreviation: rit
Adverb
(-)
(music) Gradually decelerating the tempo of a piece of music, especially at the end of the piece.
Antonyms
* accelerando
----
rallentando
English
Adjective
(-)
(music) slackening; becoming slower (used as a musical direction).
----