lightly vs thinly

lightly and thinly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
lightly	No	No	No	Yes
thinly	No	No	No	Yes

As adverbs, lightly and thinly are synonyms defined as:

lightly (adverb)	thinly (adverb)
with little weight or force	without viscosity
indulging with temperance	in a small quantity or extent
with few burdens	in a widely distributed manner
in a small quantity or extent	without force or sincere effort
with indifference or without dejection
to a slight degree
without good reason