vain
US /veɪn/
UK /veɪn/
1.
having or showing an excessively high opinion of one's appearance, abilities, or worth
:
•
She is so vain that she spends hours looking at herself in the mirror.
•
His vain attempts to impress her failed.
2.
producing no result; useless
:
•
All their efforts were in vain.
•
It was a vain attempt to escape.