menacingly

menacing +‎ -ly

menacingly (comparative more menacingly, superlative most menacingly)

1. In a menacing manner.
   • 1902, Barbara Baynton, edited by Sally Krimmer and Alan Lawson, Bush Studies (Portable Australian Authors: Barbara Baynton), St Lucia: University of Queensland Press, published 1980, page 19:

     Food, more and better, was placed near her - but, dumb and motionless, she lay with her face turned to the wall, and her dog growled menacingly at the stranger.

   • 1982, Douglas Adams, Life, the Universe and Everything, page 110:

     Thor glared at him [...] what little light there was in the place mustered its forces briefly to glint menacingly off the horns of his helmet.