蒙蒙 [－－]

Jyutping mung4 mung4
Pinyin méng méng

Definitions (CC-CEDICT)
  1. drizzle (of rain or snow)
Definitions (Wiktionary)
  1. verb, literary
    to burgeon; to spring up
  2. adj, literary
    covering densely; (of rain or snow) drizzling
  3. adj, literary
    dark; gloomy