scatterbrained vs flyaway

scatterbrained and flyaway both are adjectives.

Word	Noun	Adjective	Verb	Adverb
scatterbrained	No	Yes	No	No
flyaway	No	Yes	No	No

As adjectives, scatterbrained and flyaway are synonyms defined as:

Other synonyms of scatterbrained include flighty, head-in-the-clouds.

scatterbrained (adjective)	flyaway (adjective)
lacking sense or discretion	guided by whim and fancy
guided by whim and fancy	(of hair or clothing) worn loose