vain: Meaning and Definition of

vain

1. excessively proud of or concerned about one's own appearance, qualities, achievements, etc.; conceited: a vain dandy.
2. proceeding from or showing personal vanity: vain remarks.
3. ineffectual or unsuccessful; futile: a vain effort.
4. without real significance, value, or importance; baseless or worthless: vain pageantry; vain display.
5. senseless or foolish.
6. to apologize in vain.
1. without effect or avail; to no purpose:to apologize in vain.
2. in an improper or irreverent manner:to take God's name in vain.