adverb (fukushi), adverb taking the 'to' particle, noun or participle which takes the aux. verb suru, onomatopoeic or mimetic
1. (laughing) foolishly; (smiling) thoughtlessly- 2. indiscreetly (talking); carelessly (speaking); frivolously; flippantly
adjectival nouns or quasi-adjectives (keiyodoshi), adverb (fukushi), adverb taking the 'to' particle, noun or participle which takes the aux. verb suru, onomatopoeic or mimetic
3. thin (paper, cloth, etc.); flimsyadverb (fukushi), adverb taking the 'to' particle, noun or participle which takes the aux. verb suru, onomatopoeic or mimetic, archaic
4. flaring up; bursting into flames