SYNONYMS
packed, congested, crushed, cramped, overcrowded, full, filled to capacity, full to bursting, overfull, overflowing, teeming, swarming, thronged, populous, overpopulated, overpeopled, busy
North American mobbed
informal stuffed, jam-packed, chock-a-block, chock-full, bursting at the seams, bulging at the seams, full to the gunwales, wall-to-wall
British informal heaving
Australian, New Zealand informal chocker