heavy

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