lightly
light-ly
adverb
With little weight, force, or pressure; gently or delicately.
"She touched his arm lightly."
adverb
Without seriousness or deep thought; in a carefree or casual manner.
"He took the criticism lightly."
Thesaurus
Synonyms: softly, gently, light, thinly
Antonyms: hard, heavily, intemperately, thickly