Giant creepy crawlies are nerve-wracking creatures that instill fear in many people. If you are someone who can't stand being around them, you might be interested in learning some synonyms that you can use while talking about them. Some of these synonyms include "monstrous insects," "enormous arachnids," "humongous bugs," "mammoth pests," and "towering creepy crawlies." These words not only describe the size of these creatures but also their unpleasant nature. When you use these words to refer to giant creepy crawlies, you are more likely to create vivid images in the listener's mind, and they will understand just how daunting these creatures can be.