coal-black

from WordNet (r) 3.0 (2006)

coal-black
    adj 1: of the blackest black; similar to the color of jet or
           coal [syn: {coal-black}, {jet}, {jet-black}, {pitchy},
           {sooty}]

from The Collaborative International Dictionary of English v.0.48

Coal-black \Coal"-black`\ (-bl[a^]k`), a.
   As black as coal; jet black; very black. --Dryden.
   [1913 Webster]

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