Dictionary.com
Thesaurus.com

rallentando

American  
[rah-luhn-tahn-doh, rahl-len-tahn-daw] / ˌrɑ lənˈtɑn doʊ, ˌrɑl lɛnˈtɑn dɔ /

adjective

  1. slackening; becoming slower (used as a musical direction).


rallentando British  
/ ˌrælɛnˈtændəʊ /

adjective

  1. Also: ritardando.   ritenuto.   rallmusic becoming slower

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of rallentando

1805–15; < Italian, gerund of rallentare to slow down; see lento

Compare meaning

How does rallentando compare to similar and commonly confused words? Explore the most common comparisons:

Explanation

When the instruction rallentando shows up in your sheet music, whether you're singing or playing an instrument, you should start decreasing the tempo. Rallentando means "gradually slowing down" in Italian. It's based on the root word lente, which means "slowly," and anything ending in -ando or -endo in Italian indicates a process, or a gradual change. Ritardando also means "gradually slowing down." What's the difference between the two instructions? Rallentando usually applies when the tempo is about to change from a faster section to a slower one, whereas ritardando is used at the end of a piece, where it slows gradually to a complete stop.

Keep Reading on Vocabulary.com

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

So I ran to the music, and, sure enough, that’s exactly what C.P.E. was asking for — no diminuendo, no rallentando, nothing.

From New York Times • Jan. 18, 2022

The spirit of Clive James was as undimmed, and as witty as ever, but his tempo was rallentando, not rubato, conducted in a minor key of reflective and poignant sweetness.

From The Guardian • May 31, 2014

MacGregor's daring extended to closing the penultimate variation with an open-pedal rallentando that allowed the original theme to re-emerge as though through a blanket of fog.

From The Guardian • Apr. 6, 2013

A group clusters around the seats behind and plays a game of Jeopardy on a laptop computer -- in answer to which the candidate's press staff, quite justly, chants in rallentando: "Boring, boring, BORING!"

From Time Magazine Archive

This phrasing is good and effective, especially if the artist changes at once to the sombre quality after the pause, and finishes the phrase piano and rallentando.

From Style in Singing by Haslam, W. E.