EGADS is an expression of surprise or shock, but there are many synonyms for this word that can be used in different contexts. For example, if you're looking for a slightly more formal alternative, "goodness gracious" might be the right choice. If you want to convey a sense of disbelief, "unbelievable" or "astonishing" could work well. "Holy cow" is also a common synonym with a similar connotation of astonishment. Another option might be "wow" or "whoa," which are more casual and modern. Whatever your preference, using a synonym for "EGADS" can add variety and depth to your language while expressing your surprise or shock.