Eng

Sparse...

疏

Channel, Clear, Distant, Dredge, Enlighten, Neglected, Remove, Sparse, Thin, Unfamiliar, Unfriendly

稀

Diluted, Loosely, Open, Scarce, Scattered, Sparse, Thin, Watery

寥

Deserted, Desolate, Empty, Few, Not Many, Sparse

稀疏

Dispersed, Scattered, Sparse