Polychrome = multicolored.
Polychrome (color
The picture looked polychrome with all of its colors.
She admired the polychrome painting for its vibrant colors and intricate details.
Polychrome
The technically exact antonym is "polychrome" or "multicolor".
Weaving is to produce a cloth by crossing vertical threads (warp) with horizontal threads (weft) on a loom.
It's a way of weaving wicker
Built of stone and covered with stucco and polychrome paint
If you mean 'weaving' . . . Spinning is making the raw material into yarn. Weaving is making the yarn into fabric.
Jacob Freedman has written: 'Polychrome Historical Haggadah For Passover'
Achromatic (without color), polychrome (has a lot of color) and monochrome (one color)