A synonym for "ugly" is "unattractive" or "hideous." To find synonyms for words, you can use a thesaurus. A thesaurus is a reference tool that lists words with similar meanings. There are both online and offline versions of thesauruses available. Online options include websites like Thesaurus.com or Merriam-Webster.com. You can search for the word "ugly" on one of these sites, and the results will provide a list of synonyms that can be used as alternatives. Offline thesauruses can be found in libraries or bookstores and work similarly by providing a range of words with related meanings.
