jam-packed
Britishadjective
Explanation
Anything that's jam-packed is as crowded or full as it can be. If you hate crowds, you'll want to avoid the jam-packed shopping malls around Christmas time. A subway car in Tokyo at rush hour is jam-packed, while a bus in a small village in Germany may have only a few passengers. And a dull day in traffic court will be sparsely attended, but during a dramatic celebrity trial the courthouse is bound to be jam-packed. This adjective is informal, dating from about the turn of the twentieth century. Earlier it was jam-full — both come from the "squeeze into a space" sense of jam.
Vocabulary lists containing jam-packed
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.
The dip comes ahead of a jam-packed day tomorrow that will provide investors with a lot of information on the health of both the economy and major tech firms.
From Barron's • Apr. 28, 2026
It’s both one of the most exclusive, sought-after invites in town and a jam-packed, raucous bash.
From Los Angeles Times • Mar. 15, 2026
The 32-year-old has had a jam-packed schedule this year and he blamed fatigue for a performance that he described as "not good".
From Barron's • Dec. 27, 2025
Retro-themed decor is in, with trees jam-packed full of bold, mismatching decorations, as more people try to recreate a festive season from their childhood.
From BBC • Dec. 20, 2025
“It was jam-packed, and the people up front were singing along to all the lyrics. It tripped me out.”
From "Blink" by Malcolm Gladwell
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.
