light·ly 
(lītlē)
(lītlē)adv.
1. With little weight or force; gently.
2. To a slight extent or amount: apply paint lightly.
3.
a. With little difficulty; easily.
b. With agility and grace; nimbly.
4.
a. In a carefree manner; cheerfully: took the news lightly.
b. Without sufficient care or consideration; indifferently: treated the situation much too lightly.