articulated assembled bristling catenated ceaseless close close-knit close-textured close-woven compact compacted compressed concatenated concentrated concrete condensed congested connected consolidated constant continual continued continuing continuous crammed crammed full crawling crowded cyclical dense direct endless featureless firm full gapless gluey hard heavy immediate impenetrable impermeable incessant interminable jam-packed jammed joined jointless linked massive monotonous never-ending nonporous nonstop packed perennial periodic populous ranged ranked recurrent repetitive round-the-clock running saw-toothed sawtooth seamless serrated smooth solid stable steady straight substantial swarming teeming thick thick-growing thickset tiered twenty-four-hour unbroken unceasing undifferentiated unending uniform unintermitted unintermittent unintermitting uninterrupted unrelieved unremitting unstopped viscid viscose viscous