fasten with a knot

the scarves were knotted loosely around their throats

a knotted rope

make (something, especially hair) tangled

the shampoo knotted my hair terribly

cause (a muscle) to become tense and hard

a small, relatively short-billed sandpiper, with a reddish-brown or blackish breast in the breeding season

fastened with or having a knot or knots

a knotted rope

(of a stem, branch, or root) knobbly, gnarled, or twisted

the knotted roots of a large oak tree

knotted wood beams

(of hair) tangled

he brushed through his knotted hair

(of a muscle) tense and hard

a neck rub can relieve knotted muscles