successful

adj

1. Resulting in success; assuring or promoting success; accomplishing what was proposed; having the desired effect.

   “a successful use of medicine; a successful experiment; a successful enterprise”

   “If successful, Edison and Ford—in 1914—would move society away from the ever more expensive and then universally known killing hazards of gasoline cars: […] .”

   “The dirty secret of the internet is that all this distraction and interruption is immensely profitable. Web companies like to boast about […], or offering services that let you[…]"share the things you love with the world" and so on. But the real way to build a successful online business is to be better than your rivals at undermining people's control of their own attention.”