What seven-letter adjective is most commonly used to describe the exuberant and freewheeling decade of the 1920's?

The seven-letter adjective that perfectly encapsulates the spirit of the 1920s is "ROARING." This term vividly describes a decade characterized by unprecedented economic prosperity, significant cultural shifts, and a pervasive sense of exuberant optimism, particularly in the United States and other Western countries following the devastation of World War I. The liveliness of this period stood in stark contrast to the global conflict that preceded it and the Great Depression that would follow.

The "Roaring Twenties" was a time of rapid social and technological advancement. Innovations like automobiles, radio, and moving pictures became widely accessible, bringing a new sense of modernity to many. This era also saw a boom in consumer culture, fueled by readily available credit and a desire for new goods and experiences. People embraced new forms of entertainment, with jazz music exploding in popularity and becoming the defining soundtrack of the era, earning it another nickname, the "Jazz Age."

Beyond economic and technological surges, the decade witnessed profound social changes. Women, having gained the right to vote in the United States in 1920, embraced new freedoms, epitomized by the "flapper" — a symbol of the emancipated "New Woman" with bobbed hair and shorter dresses who challenged traditional norms. Despite the onset of Prohibition, a subculture of illegal speakeasies thrived, adding to the era's rebellious and freewheeling atmosphere. This combination of economic boom, cultural dynamism, and a general break from tradition made the 1920s truly "roaring."