dreadsome

• drodsome (dialectal)

From dread +‎ -some.

dreadsome (comparative more dreadsome, superlative most dreadsome)

1. Marked by dread; dreadful; alarming.
   • 2001, Magda King, A Guide to Heidegger's Being and Time:

     But the dreadsome must evidently be of a nature we cannot do anything about.

   • 2012, Warfare in Eastern Europe, 1500-1800:

     In advance of it two dreadsome young men [Archangels Michael and Gabriel] glided through the air with unsheathed swords threatening the Muslim regiments. At that moment we recognized them.