- bipartite - divided into two portions almost to the base
Antonyms: simple, unsubdivided (indirect, via compound)
- bipartite, two-party, two-way - involving two parties or elements; "a bipartite document"; "a two-way treaty"
Antonyms: unilateral, one-sided (indirect, via multilateral, bilateral)
Antonyms: multilateral, many-sided (indirect, via bilateral, unilateral)