Not having practiced or performed something recently and consequently not being as skilled at it as before.

जिस कार्य में अभ्यास या प्रैक्टिस की कमी हो

English Usage: After not playing the piano for years, she felt out of practice.

Hindi Usage: कई सालों तक पियानो न बजाने के बाद उसे लगा कि वह अभ्यास में नहीं है।