正大

zhèngdà
  1. (of behaviour, actions, etc.) proper; appropriate; legitimate; reasonable; above board; upright; honest
  2. proper; appropriate; legitimate; reasonable; above board; upright; honest

Wiktionary

Entry Composition

=1 正 zhēng first month of the lunar year
=1 正 zhèng
  1. straight
  2. upright
  3. proper
  4. main
  5. principal
  6. to correct
  7. to rectify
  8. exactly
  9. just (at that time)
  10. right (in that place)
  11. (math.) positive
=2 大 dà
  1. big; large; great
  2. older (than another person)
  3. eldest (as in 大姐 dàjiě)
  4. greatly; freely; fully
  5. (dialect) father
  6. (dialect) uncle (father's brother)
=2 大 dài see 大夫 dàifu

Containing this entry

光明正大 guāngmíngzhèngdà
  1. (of a person) honorable; not devious
  2. (of a behavior) fair and aboveboard; without tricks; openly
  3. (of a situation) out in the open
正大光明 zhèngdàguāngmíng just and honorable
公明正大 gōngmíngzhèngdà