Meanings
adjectivejam-packed (comparative more jam-packed, superlative most jam-packed)
comparative more jam-packed · superlative most jam-packed
- informalPacked or filled tightly.
Summer holidays: 'Staycationers' alight at London Paddington from a full train from the West Country. No matter what time of day, the trains are invariably jam-packed when they arrive at a London terminus.
2021 December 29, “Our railway from behind the lens...”, in RAIL, number 947, page 38, photo caption
verb
- participlepastsimple past and past participle of jam-pack
Synonyms & antonyms
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Translations
Greek ασφυκτικά γεμάτος
- ασφυκτικά γεμάτος (asfyktiká gemátos)Translations
Polish zapchany, zatłoczony
- zapchanyTranslations
- zatłoczonyTranslations
Cite this entry
APA
jam-packed. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/jam-packed
MLA
“jam-packed.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/jam-packed. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “jam-packed,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/jam-packed.
Source: jam-packed on Wiktionary, CC BY-SA 4.0.