Found 2 items, similar to slaughterously.
English → English (WordNet) Definition: slaughterous slaughterous adj : accompanied by bloodshed; “this bitter and sanguinary war” [syn: gory, sanguinary, sanguineous, butcherly]
English → English (gcide) Definition: Slaughterously Slaughterous \Slaugh"ter*ous\, a. Destructive; murderous. --Shak. --M. Arnold. -- Slaugh"ter*ous*ly, adv. [1913 Webster]