1. [Adjective]: metaphorically hard; "a hard fate"; "took a hard look"; "a hard bargainer"; "a hard climb"

2. [Adjective]: not easy; requiring great physical or mental effort to accomplish or comprehend or endure; "a difficult task"; "nesting places on the cliffs are difficult of access"; "difficult times"; "a difficult child"; "found himself in a difficult situation"; "why i

3. [Adjective]: not yielding to pressure or easily penetrated; "hard as rock"

4. [Adjective]: of speech sounds

5. [Adverb]: to the full extent possible; all the way; "hard alee"; "the ship went hard astern"; "swung the wheel hard left"

6. [Adverb]: causing great damage or hardship; "industries hit hard by the depression"; "she was severely affected by the bank''s failure"

7. [Adverb]: earnestly or intently; "thought hard about it"; "stared hard at the accused"

8. [Adverb]: very near or close in space or time; "it stands hard by the railroad tracks"; "they were hard on his heels"; "a strike followed hard upon the plant''s opening"

9. [Adverb]: indulging excessively; "he drank heavily"

10. [Adverb]: with effort or force or vigor; "the team played hard"; "worked hard all day"; "pressed hard on the lever"; "hit the ball hard"; "slammed the door hard"

11. [Adverb]: slowly and with difficulty; "prejudices die hard"

12. [Adverb]: with firmness; "held hard to the railing"

13. [Adverb]: with pain or distress or bitterness; "he took the rejection very hard"

14. [Adverb]: into a solid condition; "concrete that sets hard within a few hours"

15. having a high alcoholic content; "hard liquor"

16. having undergone fermentation; "hard cider"

17. dried out; "hard dry rolls left over from the day before"

18. very strong or vigorous; "strong winds"; "a hard left to the chin"; "a knockout punch"; "a severe blow"

19. characterized by toilsome effort to the point of exhaustion; especially physical effort; "worked their arduous way up the mining valley"; "a grueling campaign"; "hard labor"; "heavy work"; "heavy going"; "spent many laborious hours on the project"; "set a

20. unfortunate or hard to bear; "had hard luck"; "a tough break"

1. ambitious

2. challenging

3. arduous

4. awkward

5. embarrassing

6. sticky

7. unenviable

8. baffling

9. knotty

10. problematic

11. problematical

12. catchy

13. tricky

14. delicate

15. ticklish

16. fractious

17. hard-fought

18. Herculean

19. nasty

20. tight

21. rocky

22. rough

23. rugged

24. tough

25. serious

26. stubborn

27. tall(a)

28. thorny

29. troublesome

30. trying

31. vexed

32. effortful

33. stale

34. bad

35. adamantine

36. al_dente

37. corneous

38. hornlike

39. horny

40. erect

41. tumid

42. firm

43. solid

44. granitic

45. granitelike

46. rocklike

47. stony

48. hardened

49. set

50. lignified

51. woody

52. marmoreal

53. marmorean

54. ossified

55. petrified

56. petrous

57. stonelike

58. semihard

59. slaty

60. slatey

61. steely

62. unpadded

63. brutal

64. cruel

65. harsh

66. rigorous

67. unkind

68. calculating

69. calculative

70. conniving

71. scheming

72. shrewd

73. case-hardened

74. hardened

75. hard-boiled

76. steely

77. stiff

78. uphill

79. plosive

80. velar

81. alcoholic

82. strong

83. soured

1. easy

2. soft

3. soft

4. soft

5. lightly