1 producing many useful results:
a fruitful collaboration / discussion * a fruitful source of information * The research has proved extremely fruitful.
OPPFRUITLESS
2 (literary) (of land or trees) producing a lot of crops
fruitfully adverb:
Computers are now widely and fruitfully used in classrooms throughout Europe.
fruitfulness noun [U]:
It takes time for the validity or fruitfulness of any academic development to become clear.
