Adjective unilateral has 2 senses
  1. unilateral, one-sided - involving only one part or side; "unilateral paralysis"; "a unilateral decision"
    Antonyms: multilateral, many-sided, multipartite, quadrilateral, four-sided, quadripartite, four-party, tetramerous, three-cornered, three-sided, triangular, trilateral, tripartite, three-party, three-way, bilateral, two-sided, bipartite, two-party, two-way, joint
  2. unilateral, unilateralist - tracing descent from either the paternal or the maternal line only
    Antonyms: collateral, indirect (indirect, via lineal)
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