Antonyms of adj rectilinear

1 sense of rectilinear

Sense 1
rectilinear, rectilineal -- (characterized by a straight line or lines; "rectilinear patterns in wallpaper"; "the rectilinear propagation of light")

INDIRECT (VIA cubic, linear) -> planar, two-dimensional -- (involving two dimensions)
INDIRECT (VIA linear, planar) -> cubic, three-dimensional -- (having three dimensions)

Similarity of adj rectilinear

1 sense of rectilinear

Sense 1
rectilinear, rectilineal -- (characterized by a straight line or lines; "rectilinear patterns in wallpaper"; "the rectilinear propagation of light")
       => linear (vs. planar) (vs. cubic), one-dimensional -- (of or in or along or relating to a line; involving a single dimension; "a linear measurement")