effective

US /ɪˈfɛktɪv/

UK /ɪˈfektɪv/

A1

adjective

  • Working efficiently to produce a desired result
  • Successful in producing a desired or intended result.
  • Producing a desired or intended result.
  • In operation; in force.
  • Skillful and producing the intended result.
  • Actual rather than nominal; real.
  • Successful in producing a desired or intended result.
  • In operation; operative.