multilateral

UK: /ˌmʌltiˈlæt^ərəl/

US: /ˌmʌltiˈlætərəl, ˌmʌltaɪ-/

US: (mul′ti lat′ər əl)

WordReference Random House Learner's Dictionary of American English © 2026

mul•ti•lat•er•al /ˌmʌltiˈlætərəl, ˌmʌltaɪ-/   adj. 

1. having several or many sides.
2. involving more than two opposing sides:
   multilateral agreements to stop the spread of nuclear arms.
See -lat-².

WordReference Random House Unabridged Dictionary of American English © 2026

mul•ti•lat•er•al  (mul′ti lat′ər əl), adj. 

1. having several or many sides;
   many-sided.
2. participated in by more than two nations, parties, etc.;
   multipartite:
   multilateral agreements on disarmament.

• multi- + lateral 1690–1700

mul′ti•lat′er•al•ism, n. 
mul′ti•lat′er•al•ist, adj., n. 
mul′ti•lat′er•al•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::

multilateral / ˌmʌltɪˈlætərəl -ˈlætrəl/ adjective

1. of or involving more than two nations or parties: a multilateral pact
2. having many sides

ˌmultiˈlaterally adverb