boosterish

adjective

boost·​er·​ish ˈbü-stə-rish 

: typical or suggestive of boosters or boosterism : marked by or showing extremely or excessively enthusiastic support for something

Beginning in 1943 … American musical theater proffered an upbeat nationalism that mirrored the country's increasingly boosterish mood.

—Carol Troyen, American Art, Summer 1993

Word History

First Known Use

1939, in the meaning defined above

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