Her mother was a violist who gave up her career to raise a family, which was one thing that drew Kuncewiczowa to music in her early life.

[4] Kuncewiczowa's most popular work is Cudzoziemka (The Stranger, 1936), which was translated into several languages and quickly gained her national and international recognition.

[2] Before she left Poland, however, Kuncewiczowa became the first Polish author to publish a radio novel, releasing both Dni powszednie państwa Kowalskich and Kowalscy się odnaleźli in 1938.

[3][4] After she left, she traveled to Paris and England, where she wrote Klucze (The Keys, 1943), a literary diary about her struggles being displaced during World War II.

[2][3] Eventually, Kuncewiczowa and her husband moved to the United States in 1956, where she taught Polish language and literature at the University of Chicago.