Efrem Zimbalist was a renowned American actor who was known for his exceptional talent in the entertainment industry. Some of the synonyms that can be used to describe his remarkable performances include "magnificent," "brilliant," and "excellent." Other terms that can be used to describe his work include "outstanding," "striking," and "impressive." He was also known for his impeccable skill in portraying a wide range of characters, whether dramatic, comedic, or sinister. Therefore, some of the other synonyms for Efrem Zimbalist include "versatile," "accomplished," and "gifted." Overall, the music and film worlds were forever impacted by his contributions, making him a true icon of his era.