Wild West

WordReference Random House Learner's Dictionary of American English © 2025

ˈWild ˈWest,  n. [proper noun* usually: the + ~]

1. American History the western frontier region of the U.S. before the establishment of stable government.

WordReference Random House Unabridged Dictionary of American English © 2025

Wild′ West′, 

1. American History the western frontier region of the U.S., before the establishment of stable government.

• 1850–55, American.

Collins Concise English Dictionary © HarperCollins Publishers::

Wild West noun

1. the western US during its settlement, esp with reference to its frontier lawlessness