The Collaborative International Dictionary
Threatfully
Threatful \Threat"ful\, a.
Full of threats; having a menacing appearance.
--Spenser. --
Threat"ful*ly, adv.
Wiktionary
threatfully
adv. In a threatful manner.
Usage examples of "threatfully".
Earnest eyes were peering through the trees in the direction of the great road, and long fingers shook threatfully at each little sable urchin, that could not stand still, and listen for the carriage wheels.