Thunderbolt is a word that describes a bolt of lightning that is accompanied by thunder. This describes a sudden and powerful event that can be used to describe a variety of things. There are several synonyms that can be used instead of thunderbolt, such as bolt of lightning, lightning strike, electrical discharge, and electric shock. Other synonyms that can be used in a less literal sense include sudden event, shock, surprise, and revelation. These synonyms can help to add variety to writing and make it more engaging for readers. So, the next time you are writing a thunderous description, consider using one of these synonyms instead of the word thunderbolt.