About
HSK levels

    1. sparse; scattered; rare; uncommon
    2. diluted; thin; watery; (bound form) sth liquid or of thin consistency (as in 綠豆稀|绿豆稀[lu : 4 dou4 xi1] "sweet mung bean soup")
    3. (bound form) totally; extremely (used with negative attributes, as in 稀糟[xi1 zao1] "utterly ruined")

    这里的人口很稀。 Zhèlǐ de rénkǒu hěn xī.