#1 lightly r. without good reason; "one cannot say such things lightly". wn
#2 lightly r. [light] with few burdens; "experienced travellers travel light". wn
#3 lightly r. [softly, gently] with little weight or force; "she kissed him lightly on the forehead". wn
#4 lightly r. indulging with temperance; "we eat lightly in the morning". wn
#5 lightly r. with indifference or without dejection; "he took it lightly". wn
vizzz