vain
US /veɪn/
UK /veɪn/

1.
vanidoso, vano
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.
Es tan vanidosa que pasa horas mirándose al espejo.
•
His vain attempts to impress her failed.
Sus vanos intentos de impresionarla fracasaron.
2.
vano, inútil
producing no result; useless
:
•
All their efforts were in vain.
Todos sus esfuerzos fueron en vano.
•
It was a vain attempt to escape.
Fue un intento vano de escapar.