heavy

abstruse abundant ample amplest appalling arduous beefy big league bloodiest bloody bulky bushy burdensome close cloudy clumsy copious corpulent criminal criminal cumbersome cumbrous dangerous deep dense denser difficult dopey drowsy dull dull duller duller elevated effortful esoteric extraordinary fatter fat fighters fighter firm fleshy foremost fraught full-bodied gravest gravest grueling grave grave gravid grievous gross harder hard heavyweight hebetudinous hefty hero/heroine heroes heroines high-grade hot-blooded hulking hulky illegal illicit illustrious important incompressible iron jeopardous joyless laborious labored languorous languid leaden lethargic listless loud louder loudest lowering lumbering lymphatic major-league massive meaningful memorable miraculous momentous more abundant more dangerous more difficult more meaningful more primary more serious more solid more significant more significant more urgent most dangerous most primary most significant most significant most notable most serious most vital most urgent nodding noteworthy notable obese onerous oppressive oppressive outlawed overweight parlous parturient passionate perfervid plenitudinous plenteous ponderous ponderable portly pregnant primary/prime primest prodigious profound psychical puissant recondite rich richer richest roaring roily roily roiled roiled rotund rugged sensual serious severe significant significant sleepy slow slow-paced slow-going slow-footed slower slowest sluggish slumberous smoggy soggy solemn solid somniferous somnific somnifacient squat stiff sticky stifling stodgy stolid stouter stout stuffy stuporous stuporous substantial sultry sullen taxing thick thick thick tiresome torpid tough tougher toughest troublesome tubby turbid unfathomable ungainly urgent villain vital weighty wooden