To assist you with categorizing the words based on the missing prefixes, let's define the prefixes:
- Un-: indicates negation (e.g., unhappy)
- Under-: indicates below or beneath (e.g., understatement)
- Uni-: indicates one (e.g., uniform)
Now, please provide the list of words you want to categorize, and I'll help you determine which words belong to each prefix category.