资料来源 : pyDict

无光线的,昏暗的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Rayless \Ray"less\, a.
   Destitute of rays; hence, dark; not illuminated; blind; as, a
   rayless sky; rayless eyes.

资料来源 : WordNet®

rayless
     adj : having no parts resembling rays; not having ray flowers