adjective

Sinuous or circuitous.

the line of gold extends and becomes anfractuous

twisting,winding,curving,curvy,bending,sinuous,undulating,coiling,looping,meandering,serpentine,snaking,snaky,zigzag,convoluted,spiralling,twisty,circuitous,rambling,wandering,indirect,deviating,devious,labyrinthine,mazy