Hypertext Webster Gateway: "threatful"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Threatful \Threat"ful\, a.
Full of threats; having a menacing appearance. --Spenser. --
{Threat"ful*ly}, adv.
Additional Hypertext Webster Gateway Lookup
Gateway by dict@stokkie.net
stock only wrote the gateway and does not have any control over the contents;
see the Webster Gateway FAQ,
and also the Back-end/database links and credits.