adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'
slowly; sluggishly; ploddingly
Describes moving in a slow, heavy, or lumbering manner, often with a sense of lack of urgency or energy. Commonly used with verbs of motion like 歩く or 動く.
See also: のっそり
亀がのそのそと歩いている。
The turtle is plodding along slowly.
彼はのそのそと起き上がった。
He sluggishly got up.