稀疏 Traditional form: 稀疏 Pinyin (reading): xīshū Definitions: sparse infrequent thinly spread Characters: 稀 - rare, unusual; scarce, sparse 疏 - to neglect; to dredge, to clear away; lax, careless Traditional characters: 稀 - rare, unusual; scarce, sparse 疏 - to neglect; to dredge, to clear away; lax, careless