say it: LAHYT-lee
lightly is an adverb meaning "without good reason". It carries 7 recorded senses.
without good reason
“one cannot say such things lightly”
indulging with temperance
“we eat lightly in the morning”
with indifference or without dejection
“he took it lightly”
in a small quantity or extent
“spread the margarine thinly over the meat”
“apply paint lightly”
to a slight degree
“her speech is only lightly accented”
Definitions, synonyms and semantic relations for lightly come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.