Third-generation is a phrase that refers to a specific category or generation of people or technology that follow two preceding generations. Some synonyms that can be used instead of 'third-generation' include "latest," "modern," "contemporary," "current," "cutting-edge," "advanced," and "innovative." These words convey the idea of something new and improved, representing the latest developments in a particular field. Other terms that could work as synonyms for third-generation are "up-to-date," "state-of-the-art," "high-tech," "sophisticated," and "progressive." These expressions can be used interchangeably depending on the context and purpose of communication. All in all, each of these synonyms serves as a perfect alternative to the word, "third-generation".