from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That had no beginning; always existent.
- adj. Which has not yet been begun; unstarted.
from the GNU version of the Collaborative International Dictionary of English
- adj. Not yet begun; also, existing without a beginning.
from The Century Dictionary and Cyclopedia
- Not yet begun.
- Having had no beginning; eternal.
From un- + begun. (Wiktionary)