from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. seldom seen, rare, uncommon
from the GNU version of the Collaborative International Dictionary of English
- adj. Seldom seen.
from The Century Dictionary and Cyclopedia
- Rarely seen; rare.
From Middle English seldsene ("rarely encountered, seldom seen; rare; as adv. seldom, rarely") also seld-sēn, seldscene, seltsene, Old English seldsīne ("rare, extraordinary, unfamiliar, uncommon") also seldsiene. (Wiktionary)