half a heart, with

half a heart, with idiom
With only moderate enthusiasm, as in After his transfer he worked with half a heart, looking forward to early retirement. [Mid-1800s] For an antonym, see with all one's heart.

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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