Synonym: boastful, conceited, egocentric, egotistical, fruitless, futile, haughty, ineffectual, lofty, proud, self-centered, unsuccessful. Antonym: effective, effectual. Similar words: in vain, maintain, prevail, available, be available, availability, pain, ain't. Meaning: [veɪn] 
adj. 1. characteristic of false pride; having an exaggerated sense of self-importance 2. unproductive of success.
adj. 1. characteristic of false pride; having an exaggerated sense of self-importance 2. unproductive of success. 
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31. She waited in vain for her son to return.
32. He's very vain of his abilities.
33. They endeavored to make her happy, but in vain.
34. John tried in vain to gloss over his faults.
35. He was vain and ostentatious.
36. They tried in vain to persuade her to go.
37. All his father's exhortations were in vain.
38. Have you been taking my name in vain ?
39. They tried in vain to open the locked door.
40. I don't like a vain woman.
41. She searched in vain for her passport.
42. Isabelle was a frivolous little fool,(www.Sentencedict.com) vain and flighty.
43. They attempted in vain to modernise these antiquated industries.
44. All my efforts were vain.
45. It is vain to resist.
46. Have you been taking my name in vain again?
47. I tried in vain to dispel her misgivings.
48. All the police's efforts to find him were in vain.
49. Her modesty is all put on; at heart she is very vain.
50. He wants the world to know his son did not die in vain.
51. He tried in vain to keep the two dogs apart before the neighbour intervened.
52. He stopped at the door, waiting in vain for her to acknowledge his presence.
53. People close their windows at night in a vain attempt to shut out the sound of gunfire.
54. He married his fourth wife, Susan, in the vain hope that she would improve his health.
55. Who's been taking my name in vain?I don't hold such an opinion.
56. They tried to rally the pound sterling but in vain.
57. The swindler tried to baffle him out of his money, but in vain.
58. He was so vain and reckless that he would break a friendship, rather than not break a jest.
59. How dare you take the Lord's name in vain ?
60. Marshals struggled in vain to prevent spectators rushing onto the racetrack.