futile

having no purpose or use; not likely to succeed

inútil, vano, sin sentido

• a futile attempt/effort
• be a waste of time

Collocations futile effort · futile attempt

• It would be futile to try and change his mind.

  Sería inútil tratar de cambiar su opinión.

having no hope of success; impossible to achieve

inútil, vano, sin esperanza

• a futile attempt/effort
• be a waste of time

Collocations futile hope · futile effort

• There is no point in trying to persuade him.

  No tiene sentido tratar de convencerlo.