Synonym: complicated, difficult, durable, firm, hard, hardy, obscure, strong, sturdy, unclear, vague. Antonym: tender. Similar words: toughness, dough, though, enough, through, drought, ought to, roughly. Meaning: [tʌf] 
n. 1. someone who learned to fight in the streets rather than being formally trained in the sport of boxing 2. an aggressive and violent young criminal 3. a cruel and brutal fellow. adj. 1. not given to gentleness or sentimentality 2. very difficult; severely testing stamina or resolution 3. physically toughened 4. substantially made or constructed 5. violent and lawless 6. feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad') 7. resistant to cutting or chewing 8. unfortunate or hard to bear 9. making great mental demands; hard to comprehend or solve or believe.
n. 1. someone who learned to fight in the streets rather than being formally trained in the sport of boxing 2. an aggressive and violent young criminal 3. a cruel and brutal fellow. adj. 1. not given to gentleness or sentimentality 2. very difficult; severely testing stamina or resolution 3. physically toughened 4. substantially made or constructed 5. violent and lawless 6. feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad') 7. resistant to cutting or chewing 8. unfortunate or hard to bear 9. making great mental demands; hard to comprehend or solve or believe. 
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31. This meat is tough.
32. The day will fall so big people, first Zhi, the labor of their bones, their body skin hunger, tough, line whisk it was chaos, so the spirit, increasing it not beneficial.
33. Both sides have tried to outdo each other to show how tough they can be.
34. We'll have to make some tough decisions - there are no easy options.
35. Unless you are trying to lose weight to please yourself, it's going to be tough to keep your motivation level high.
36. No matter how tough the life is, you will eventually find someone who'd make you willing to stay with.
37. He is a tough negotiator. We did not expect to find him a pushover and he has not been one.
38. We need a mayor who is tough enough to clean up this town.
39. Be patient and tough; someday this pain will be useful to you. Ovid 
40. Life is tough, and if you have the ability to laugh at it you have the ability to enjoy it.
41. It can be tough trying to juggle a career and a family.
42. Children's shoes need to be tough.
43. He was criticized for his tough stand on immigration.
44. He's a tough nut to crack.
45. She' s had a tough life.
46. You think you're so tough, don't you?
47. The general assigned him to do the tough task.
48. He is tough to work with.
49. He was the quintessential tough guy.
50. The company fought off tough competition.
51. I've had a tough few months, but I'll survive.
52. You're just going to have to tough it out.
53. The school takes a tough line on cheating.
54. Has the government been tough enough on polluters?
55. Anticipate any tough questions and rehearse your answers.
56. The President has adopted a tough stance on terrorism.
57. It's time to get tough with football hooligans.
58. Then this guy started acting tough.
59. They've had an exceptionally tough life.
60. My boss has given me a tough job/assignment.
More similar words: toughness, dough, though, enough, through, drought, ought to, roughly, a thought, as though, thorough, although, go through, all through, throughout, get through, even though, run through, fall through, put through, cut through, thoroughly, come through, look through, pull through, pass through, carry through, break through, deep in thought, follow through.