adverb, noun or participle which takes 'suru'
absent-mindedly; vacantly; idly; doing nothing
Describes a state of spacing out, staring blankly, or being idle without any particular thought or action. Often used with する to mean 'zone out' or 'do nothing in particular'.
彼は窓の外をぼけっと眺めていた。
He was staring vacantly out the window.
休みの日は家でぼけっとしていることが多い。
On my days off, I often just laze around at home doing nothing.