[syn: lightless, unilluminated, unlighted, unlit]
The Collaborative International Dictionary of English v.0.48:
Unlighted \Unlighted\
   See lighted.
WordNet (r) 3.0 (2006):
unlighted
    adj 1: not set afire or burning; "the table was bare, the
           candles unlighted"; "held an unlit cigarette" [syn:
           unlighted, unlit] [ant: lighted, lit]
    2: without illumination; "came up the lightless stairs"; "the
       unilluminated side of Mars"; "through dark unlighted (or
       unlit) streets" [syn: lightless, unilluminated,
       unlighted, unlit]