Hard

strong firm solid hardened dense rigid stiff inflexible compact compressed tough impenetrable iron rocky stony set packed consolidated concentrated compacted unyielding callous indurate indurated adamantine

exhausting demanding tough severe serious heavy complicated troublesome tiring strenuous laborious arduous formidable exacting onerous distressing bothersome fatiguing wearying wearisome involved intricate rough backbreaking grinding toilsome effortful labored slavish unsparing burdensome uphill uphill battle knotty irksome sticky murder mean merciless terrible operose toilful hairy herculean difficile scabrous rugged

ruthless callous unsympathetic unfeeling harsh severe strict brutal cold tough grim bitter austere unpleasant disagreeable painful distressing intolerable unkind antagonistic hostile resentful angry rancorous vengeful bleak unrelenting unsparing pitiless obdurate hard-boiled hard as nails cold-blooded cold fish stern rigorous exacting stringent rugged dark inclement intemperate perverse stubborn thick-skinned acrimonious unjust grievous dour

definite absolute actual positive sure genuine undeniable indisputable realistic practical pragmatic plain bare down-to-earth verified unvarnished cold

strongly heavily forcibly intensely seriously severely urgently actively energetically roughly sharply briskly earnestly powerfully fiercely angrily furiously madly painfully cruelly brutally viciously violently savagely keenly wildly frantically spiritedly vigorously animatedly relentlessly boisterously rowdily meanly turbulently stormily like fury with all one’s might ferociously rigorously tumultuously uproariously vivaciously sprightly

earnestly intensely diligently thoroughly intensively steadily persistently sharply closely industriously strenuously assiduously intentently exhaustively unremittingly doggedly searchingly painstakingly untiringly

badly hardly roughly painfully severely carefully awkwardly agonizingly arduously strenuously laboriously vigorously with great effort distressingly exhaustingly tiredly burdensomely inconveniently gruelingly ponderously toilsomely cumbersomely cumbrously unwieldily

bitterly reluctantly slowly sorely keenly hardly rancorously