Antonym: unnecessary, chance. Similar words: necessary, recessive, recession, excessive, accessible, processing, concession, go to pieces. Meaning: [nɪ'sesətɪ] 
n. 1. the condition of being essential or indispensable 2. anything indispensable.
n. 1. the condition of being essential or indispensable 2. anything indispensable. 
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31. He only remained with the group out of necessity.
32. He was driven by necessity to steal.
33. Living in London he felt, was an unfortunate necessity.
34. The necessity for nuclear nonproliferation seems clear.
35. Necessity forced an urgent solution.
36. Access to the Internet is fast becoming a necessity.
37. Air-conditioning is an absolute necessity in this climate.
38. Eating is a biological necessity!
39. Food is a necessity of life.
40. Most women, like men[sentencedict.com], work from economic necessity.
41. The alliance was born of necessity in 1941.
42. Water is a basic necessity of life.
43. Many of the jobs are, of necessity, temporary.
44. Policies which address these issues are an urgent necessity.
45. Telephone is now a household necessity.
46. He urged the necessity for immediate action.
47. They have accepted the necessity of greater state intervention.
48. He emphasized the necessity for good planning and management.
49. Negotiations between the enemies are of necessity indirect.
50. The visit will, of necessity,(Sentencedict.com ) be brief.
51. We must all, of necessity, die sooner or later.
52. Is it a logical necessity that higher wages will lead to higher prices?
53. Where necessity demands, we can seat more guests in the gallery.
54. We're going to focus on the relationship between freedom and necessity.
55. The report stresses the necessity of eating plenty of fresh fruit and vegetables.
56. A car is an absolute necessity if you live in the country.
57. The teacher was laid under the necessity of punishing the student who failed in the examination.
58. You can dial directly without the necessity of going through the operator.
59. The population failed to understand the necessity for the war to go on.
60. She decided to make a virtue of necessity and combined a business trip to Paris with a visit to her cousins there.
More similar words: necessary, recessive, recession, excessive, accessible, processing, concession, go to pieces, excess, access, success, process, incessant, density, obesity, processor, in excess of, adversity, diversity, intensity, curiosity, session, propensity, university, successfully, sensitivity, confession, depression, aggressive, impression.