let loose
Americanidiom
past and past participle
let loose,present participle
letting loose-
to set free; release;
They let the captured mouse loose in a field.
-
to allow to act freely (often followed byon ).
I have my medical students practice putting IVs in me before I let them loose on patients.
-
to act in a relaxed or uninhibited way.
It took some time to talk my dad into letting loose and playing a few games with the grandkids.
I can be serious when I need to be, but sometimes I just need to let loose and have fun.
-
to utter or issue forcefully and suddenly (sometimes followed bywith ).
I let loose a shriek and made a dive for the door.
He let loose with a flurry of angry posts on the website.
-
to give way; yield.
The guardrail let loose and we very nearly plunged over the edge.
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.
She sang open-throated declarations, recited broken poetic verses, scatted with the authority of a jazz singer, moaned with bluesy intent, and occasionally let loose an unbridled shriek or giggle.
From The Wall Street Journal • Apr. 4, 2026
"We saw this happen in 2019 when the invasive species regulation came in and there was a spike in animals such as raccoons and tanukis coming into us or even being let loose."
From BBC • Feb. 26, 2026
What was it like to really let loose like that?
From Los Angeles Times • Dec. 4, 2025
But hear us out: The Matic is the best robot vacuum we’ve ever let loose on our filthy floors.
From The Wall Street Journal • Nov. 23, 2025
But for Kenzi and Simeon, this was where they could let loose.
From "Look Both Ways" by Jason Reynolds
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.