Meanings (ES + gloss)
espantoso • horripilante • truculento
Repellently frightful and shocking; ghastly, horrific.
There's a wheen German horse doun at Glasgow yonder; they ca' their commander Wittybody, or some sic name, though he's as grave and grewsome an auld Dutchman as e'er I saw.
With many a grausome shape unutterable, / Limn'd were the cavernous sepulchral walls; […]