You searched for: “treasonably
treasonably (adverb), more treasonably, most treasonably
Descriptive of how someone acts in a manner or style that is disloyal, faithless, and that is a betrayal of allegiance: Matthew was behaving in a treasonably odd manner that made people wonder if he was doing something illegal and disloyal to his family.
This entry is located in the following units: -ably (page 12) dat-, dos-, dot-, dow-, don-, dit- (page 7)