What is a synonym for "pre-war"?

Common synonyms include: antebellum.

Pre-war

/pɹiːˈwɔː/ adj

adj ·Rare ·Advanced level

Adjective

1
Before a war. not-comparable
"For quotations using this term, see Citations:prewar."
2
Before a war.; Before the most recent or significant war in a culture's history. not-comparable
3
Before a war.; Before the outbreak of World War I in 1914. not-comparable
4
Before a war.; Before the outbreak of World War II in 1939.; Especially pre-war architecture: buildings (particularly in and around New York) built between 1900 and about 1940. not-comparable
5
Before a war.; Before the outbreak of World War II in 1939.; Between the end of World War I in 1918 and the outbreak of World War II in 1939; interwar, especially Weimar Republic Germany. not-comparable

"This is a wonderful pre-war whiskey."

From pre- + war.