The antonyms for the term "nine-to-fives" would be words like flexible, freelance, or unconventional. These words describe individuals who do not adhere to the traditional schedule of a nine-to-five working day. Instead, they have a more adaptable work schedule and may work from home or have irregular hours. They may also work in a variety of fields, such as art, music, or writing, where creativity and freedom are valued over strict working hours. These individuals may also have a different approach to work-life balance, prioritizing personal passions and hobbies alongside their professional responsibilities.