English

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Etymology

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From rumble +‎ -y.

Adjective

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rumbly (comparative rumblier, superlative rumbliest)

  1. Making a rumbling noise.
    • 2007 June 24, Negar Azimi, “Hard Realities of Soft Power”, in New York Times[1]:
      His voice is pleasantly rumbly; his smile is so wide that it seems to have been drawn onto his face with a crayon.