Lasting, Lethargic, Lumpish, Lush, Luxuriant, Marble, Massed, Massive, Oafish, Obdurate, Obtuse, Opaque, Overgrown, Overrun, Packed, Phlegmatic, Piled, Populous, Rank, Resistant, Resistive, Riotous, Rocky, Rugged, Serried, Slow, Sluggish, Solid, Sound, Stable, Steady, Steely, Stolid, Stony, Stout, Strong, Stupid, Sturdy, Substantial, Swarming, Teeming, Thick, Thickset, Tight, Torpid, Tough, Unyielding, Viscose, Viscous, Weedy, Asinine, Blockish, Bony, Bovine, Bristling, Bulky, Cement, Close, Coarse, Compact, Compacted, Compressed, Concentrated, Concrete, Condensed, Congested, Consolidated, Corpulent, Crammed, Crass, Crawling, Crowded, Dim, Dull, Dullard, Dumb, Durable, Enduring, Exuberant, Fat, Firm, Flinty, Flourishing, Foolish, Full, Gluey, Granitic, Gross, Hard, Hardhearted, Heaped, Heavy, Horny, Impassable, Impassive, Impenetrable, Impermeable, Jammed