不时之需 bùshízhīxū rainy day fund Definitions Defs Origin Strokes Stroke Words Sentences Sents 不时 不時 bùshí at any time at an uncertain time; at any moment, especially in the phrase 不时之需 bùshízhīxū之 zhī particle [possessive] Connects a describing word or phrase to the noun it describes, similar to 的 de but used in formal or literary writing.需 xū noun needs necessities; requirements; essential supplies; expenses