Synonyms for "Eugene O'Neill" include the father of American drama, the master playwright, and the Nobel laureate. O'Neill was a prominent figure in American literature, writing plays that explored the depths of human emotion and relationships. He was known for his realistic portrayals of characters and themes, earning him multiple Pulitzer Prizes and the Nobel Prize in literature in 1936. O'Neill's works tackled taboo subjects like addiction, sexuality, and the human condition, paving the way for other American playwrights to delve deeper into these complex topics. In short, Eugene O'Neill left an indelible mark on the world of theater and literature.