Eftsoons is an archaic word that means "soon after" or "shortly afterward." This word is rarely used in modern English, and there are many more commonly used synonyms that convey a similar meaning. Some examples of synonyms for eftsoons include immediately, promptly, shortly, presently, without delay, without hesitation, and instantaneously. Each of these words suggests a quick and timely action, making them ideal for situations where speed is of the essence. By using more modern synonyms for eftsoons, writers and speakers can better communicate with their audiences and avoid the confusion that often comes with archaic language.