effectual

/ɪˈfɛktʃuəl/
adjective
  1. Successful in producing the desired result; effective.
    • Her effectual leadership turned the failing company around within a year.
    • The new safety training program proved effectual in reducing workplace accidents.
    • A simple, effectual remedy for a headache is to drink plenty of water and rest.
What does "effectual" mean? | whatsthatwordmean | whatsthatwordmean