The Collaborative International Dictionary
Ghastful
Ghastful \Ghast"ful\, a. [See Ghastly, a.] Fit to make one aghast; dismal. [Obs.] -- Ghast"ful*ly, adv.
Wiktionary
ghastful
a. 1 (label en archaic) Causing fear; terrifying; dreadful; fit to make one aghast; exceedingly dismal. 2 (label en archaic) terrified, frightened.