19/7/19 Is Efficient the Same as Effective?
If somebody or something is efficient, he/she/it works in a well-organized way without wasting time or energy.
  • He’s not very efficient: he keeps filing documents in the wrong place, he works very slowly, and he keeps forgetting things.
  • The postal service is way less efficient than the telephone system.
If something is effective, it has the right effect: it solves a problem or gets a result.
  • My headache’s much better. Those tablets really are effective.
  • I think a wide black belt would look very effective with that dress.