vain

Definition:
1. Unproductive of success.
2. That does not produce the result you want.
3. If you describe a hope that something will happen as a vain hope, you mean that there is no chance of it happening.
4. If people are vain, they are only concerned with how they look.

Use 'vain' in a sentence:

• 1. Their blood was not shed in vain.
• 2. I am not a vain creature.
• 3. If we have not peace within ourselves, it is in vain to seek it from outward sources.
• 4. Rebecca is so vain that she looks at herself in every mirror.
• 5. I was singing in a vain effort to cheer him up.
• 6. I took several deep breaths in a very vain attempt to calm myself.
• 7. He wanted the world to know that he didn't die in vain.
• 8. That man is so vain, all he cares about is his appearance.