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actual alcoholic ambitious austere backbreaking badly bang bare barest bitter bleak bleaker bleakest bony brassy brutal callous closely cold-hearted compassionless compact complicated concentrated contemptuous cruel crusty deep demanding disturbing dour down-to-earth dry effortful exacting exigent factual fast faster fastest firmly firm flinty fiercely formidable forcibly genuine grueling hardhearted hardheaded hard-nosed/hardheaded harshest harshest harsh harsh harsher harsher heartless heaviest heavy heightened Herculean impenetrable inalterable inarguable inclement incompressible incontestable indigestible inexorable inflexible inflexible insensitive insusceptible intense intently intensive intricate knockabout knotty labored laboriously loveless madly meaner mean merciless metallic mightily moistureless more concentrated more compact more complicated more hardnosed more hard-nosed more hard nosed more intensive more brutal more demanding more painful more rigid more hardheaded more hardheaded more stringent more undisputable more rigorous more positive more serious most hardnosed most hard-nosed most hardheaded most hardheaded most hard nosed most serious most undisputable nagging nearby naturalistic no-nonsense obdurate obstinate onerous operose oppressively ossified painful perturbing positive powerfully pragmatic pragmatical profound punishing puzzling rainless raw rawest recondite realistic refractory relentless remorseless resentful rocky rocky rugged rugged rigorous rigid rough rough roughest roughest rougher rougher ruthless scratchy serious severely severe severe sinewy slavish smarting squawky stale stern stiff stiff sticky stonyhearted stout stouter strenuous strict stricter strictest stringent strong tall taller tallest thick thorny thoroughly tiresome toilsome tough tough tough toughest toughest toughest tougher tougher tougher troublesome troublous true-life trying unassailable uncompassionate uncomfortable undisputable unfeeling unforgiving unperfected unmerciful unpitying unromantic unsparing unstirred upsetting uphill unsympathetic unsettling unyielding utilitarian