Learner's definition of LIGHTLY
[more lightly; most lightly]
: in a light manner: such as a : with little weight or force
b : without care or concern : in a way that is not serious c : in a quick and graceful way d : in a small amount : to a small degree or extent
The rain fell lightly [=softly] on the roof.
She touched his hand lightly. [=gently]
The recipe says that you should beat the eggs lightly. [=gently]
e : in a way that is not as harsh or severe as it could or should be
lightly [=slightly] salted/roasted peanuts
lightly buttered toast
These vegetables can be eaten either raw or lightly cooked.
a lightly populated area
Our troops were armed too lightly to take on the heavily armed invaders.
Considering the harm he did, he's gotten off lightly with only a warning.
The judge let her off lightly with a short sentence.