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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61. She attempted in vain to introduce some order into the classroom.
62. In vain he tried to free the rope around his hands.
63. He made a vain attempt to reach the drowning child.
64. He asked her again in the vain hope that he could persuade her to come .
65. The young mother died in a vain attempt to save her drowning son.
66. It was in vain that we tried to find his mother.
67. He was not vain,(Sentencedict.com) but he was quietly proud of his literary achievements.
68. He tried to cover up his mistakes but in vain.
69. Altman swore that his son's death would not be in vain.
70. He was very vain about his hair and his clothes.
71. She tried in vain to point out to him the unfairness of his actions.
72. She and a neighbour tried in vain to revive him.
73. She tried in vain to point out to him the unfairness of the situation.
74. He looked in vain for the source of his unease.
75. He could not bring himself to like the boastful, vain Arabella.
76. The police tried in vain to break up the protest crowds.
77. Day after day she waited in vain for him to telephone her.
78. It was a vain attempt to shift the responsibility for the murder to somebody else.
79. He was vain and bombastic.
80. He was nothing if not vain.
81. Pollsters have searched in vain for pockets of disloyalty.
82. Against boredom the gods themselves fight in vain. Friedrich Nietzsche 
83. We looked in vain for vent communities mapped earlier.
84. It was usually a vain hope.
85. These lackeys of bourgeois criticism can yap in vain.
86. I looked in vain for a chair.
87. Curling his toes in a vain attempt to frustrate the inhospitable lino, Mungo watched, fascinated.
88. Coarse and shy and cynical and vain and rude and insecure to the point of self-hatred.
89. Live for yourself and you will live in vain; Live for others, and you will live again. Bob Marley
90. You listen in vain for any recognition of the enormous harm tobacco does.