Learner's definition of HEARTY
[also more hearty; most hearty]
1 : done or expressed in a very open, cheerful, and energetic way 2 : strong, healthy, and active
hearty young men and women
His grandmother remains hale and hearty in her old age.
All of the children have hearty appetites. = All of the children are hearty eaters. [=all of the children eat large amounts of food]
3 : large enough to satisfy hunger
a hearty meal