Pronunciation: (līt'lē),[key] —adv. 1. with little weight, force, intensity, etc.; gently: to press lightly on a door bell. 2. to only a small amount or degree; slightly: lightly fried eggs. 3. nimbly; quickly: to leap lightly aside. 4. with a lack of concern; indifferently; slightly: to think lightly of one's achievements. 5. cheerfully; without complaining: to take bad news lightly. 6. without due consideration or reason (often used negatively): an offer not to be refused lightly. 7. easily; without trouble or effort: Lightly come, lightly go. 8. frivolously; flippantly: to behave lightly. 9. airily; buoyantly: flags floating lightly.