one's heart sinks
idiom
—used to say that someone becomes sad or disappointed about something
My heart sank when I saw the pained expression on her face.
Cite this Entry
“One's heart sinks.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one%27s%20heart%20sinks. Accessed 31 Oct. 2025.
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Merriam-Webster unabridged
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