Of a part of the body, a tree, etc.: full of knots (knobs or swellings); gnarled, knobbly.
Of string or something stringlike: full of, or tied up, in knots.
Complicated or tricky; complex, difficult.
Of an austere or hard nature; rugged.
having disheveled hair blown about by the wind.
growing in a distorted shape produced by the prevailing winds.
dispersed by the wind.