to no effect
US /tə nō ɪˈfekt/
UK /tə nō ɪˈfekt/
1.
دون جدوى, بلا فائدة
without producing the desired or intended result
:
•
They tried to persuade him, but to no effect.
حاولوا إقناعه، ولكن دون جدوى.
•
All her efforts were to no effect.
كل جهودها كانت دون جدوى.