from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. from (or due to) which one will not, or cannot, return (of a journey, destination, situation, distance, etc.)
- adj. which will not return
from the GNU version of the Collaborative International Dictionary of English
- adj. Admitting no return.
from The Century Dictionary and Cyclopedia
- Without return; admitting no return.
From return + -less. (Wiktionary)