Meaning: Visible masses of tiny water droplets or ice crystals suspended in the atmosphere move slowly and smoothly in a particular direction in a slow and relaxed manner in the region of the atmosphere above the earth.
Choice of Words: Clouds are visible masses of tiny water droplets or ice crystals suspended in the atmosphere. Drift means to move slowly and smoothly in a particular direction. Lazily means in a slow and relaxed manner. Sky is the region of the atmosphere above the earth.