from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Without an author.
from the GNU version of the Collaborative International Dictionary of English
- adj. Without an author; without authority; anonymous.
from The Century Dictionary and Cyclopedia
- Of unknown or unadmitted authorship: anonymous: as, an authorless rumor.
- That never had an author; unoriginated by any one; uncreated.
- Without authors or writers: as, “an interval of authorless years,”
author + -less (Wiktionary)