Russian-English translations for целесообра́зный

• expedient
  Most people, faced with a decision, will choose the most expedient option
• in order
  Place the cards in order by color, then by number
  Some teachers find it hard to keep their classes in order.
  I wish I could get my desk in order.
• rational
  Man is a rational creature
  His statements were quite rational
  rational conduct
• sensible
  a sensible thermometer