A disappointment or failure to meet expectations.

निराशा

English Usage: "The movie was such a letdown; I expected it to be exciting."

Hindi Usage: "फिल्म काफी निराशा हुई; मैंने इसे रोमांचक होने की उम्मीद की थी।"

To disappoint someone or fail to meet their expectations.

निराश करना

English Usage: "I didn't mean to let you down with my performance."

Hindi Usage: "मैं अपनी प्रदर्शन से आपको निराश करना नहीं चाहता था।"