jam–packed

1 containing or seeming to contain the greatest quantity or number possible a film jam-packed with spectacular action sequences Synonyms brimful, brimming, bursting, chockablock, chock-full (or chockful), crammed, crowded, fat, filled, jammed, jam-packed, loaded, packed, stuffedRelated Words overcrowded, overfilled, overflowing, overfull, overladen, overloaded, overstuffed; abounding, flush, fraught, replete, rife, swarming, teemingNear Antonyms deficient, inadequate, incomplete, insufficient, short, shortish, shy, wanting; depleted, drained, exhaustedAntonyms bare, blank, devoid, empty, stark, vacant, void

2 having little space between items or parts the jam-packed placement of the chicken pieces in the frying pan prevented them from browning properly Synonyms compact, crowded, dense, jam-packed, packed, serried, thick, tightRelated Words crammed, jammed, overcrowded; crushed, massed, pressed, squeezed, wall-to-wall; airtight, snug; compacted, compressed, condensed, congested; firm, hard, solid; impenetrable, impermeable, imperviousNear Antonyms commodious, roomy, spaciousAntonyms airy, loose, open, uncrowded