heavy

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