three-dimensional adj 1: involving or relating to three dimensions or aspects; giving the illusion of depth; "lifelike three-dimensional characters"; "a three-dimensional account of conditions under the new government"; "they shot the movie in three-D" [syn: {three-dimensional}, {3-dimensional}, {third-dimensional}, {three-d}] 2: having three dimensions [syn: {cubic}, {three-dimensional}] [ant: {linear}, {one-dimensional}, {planar}, {two- dimensional}]