To decide to stop trying to achieve something because it's deemed unachievable or hopeless.

असफल प्रयास छोड़ देना

English Usage: After several failed attempts to fix the engine, he decided to give up as a bad job.

Hindi Usage: कई बार इंजन ठीक करने की कोशिश के बाद, उसने निराश होकर छोड़ दिया।