trea·son·a·ble 
(trēzə-nə-bəl)
(trēzə-nə-bəl)adj.
Relating to, constituting, or involving treason: Espionage is a treasonable act.
treason·a·bly adv.
- double fault
- double-fault
- double feature
- double fertilization
- double figure
- double flat
- double genitive
- double Gloucester
- double-handed
- doublehanded
- double-handedly
- double-header
- doubleheader
- double helix
- double-hung window
- double indemnity
- double jeopardy
- double-jointed
- double knit
- double-knit
- double negative
- doubleness
- double-park
- double-parker
- double play