长天大日 chángtiāndàrì endless daytime Definitions Defs Origin Strokes Stroke Words Sentences Sents 长天 長天 chángtiān whole day (Archaic) the entire day; all day long大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult日 rì nounadverb daytime daytime; the period between sunrise and sunset as opposed to night