Definify.com
Webster 1913 Edition
Treasonous
Trea′son-ous
,Adj.
Treasonable.
Shak.
The
treasonous
book of the Court of King James. Pepys.
Webster 1828 Edition
Treasonous
TREASONOUS
, for treasonable, is not in use.Definition 2025
treasonous
treasonous
English
Adjective
treasonous (not comparable)
- Like or in the way of treason.
- His treasonous actions earned Benedict Arnold eternal scorn.