tone down

tone down idiom
Make less vivid, harsh, or violent; moderate. For example, That's a little too much rouge; I'd tone it down a bit, or Do you think I should tone down this letter of complaint? This idiom uses tone in the sense of “adjust the tone or quality of something,” as does the antonym, tone up, meaning “brighten or strengthen.” For example, These curtains will tone up the whole room, or This exercise is said to tone up the triceps. [Mid-1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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