adverb taking the 'to' particle, taru-adjective
casually; aimlessly; abruptly; unexpectedly
Describes a person appearing, leaving, or wandering without clear purpose or notice. Often used with verbs of motion like 来る, 去る, 現れる. Literary and somewhat old-fashioned.
彼は飄然と姿を消した。
He disappeared without a trace.
飄然と旅に出るのも悪くない。
Setting off on a journey with no particular aim isn't bad either.
taru-adjective, adverb taking the 'to' particle
Describes a person's attitude or demeanor as being unconcerned with worldly affairs, free from attachment. Often used in literary descriptions of character.
彼はいつも飄然としていて、世俗のことに興味がないようだ。
He always seems detached and uninterested in worldly matters.