- One who is a nonconformist or who does not recognize the authority of others.
- 1904, Jack London, chapter 26, in The Sea Wolf:
- But Lucifer was a free spirit. To serve was to suffocate.
- 1959 October 19, “Books: Rake's Progress”, in Time:
- Writing in the Victorian era, Scientist Ellis (Psychology of Sex) idolized Casanova as a free spirit, a man who had the courage to live life fully, and as a shining example of "adjustment"—for Casanova adapted himself so easily to his own desires.