fifth-columnist
noun[C]
uk/ˌfɪfθ ˈkɒl.əm.nɪst/us/ˌfɪfθ ˈkɑː.ləm.nɪst/amemberof agroupofpeoplewhosupporttheenemiesof thecountrytheylivein andsecretlyhelpthem:
第五纵队成员（支持并秘密帮助所在国家的敌人的一群人）He wasambivalentabout hisroleas a fifth-columnist.他对自己作为第五纵队成员的角色感到很矛盾。
Thewriterwassecretlya fifth-columnist.这位作家暗地里是第五纵队的成员。
See
fifth column
- Thepoliticalestablishmentwaslookingfor a fifth-columnist toattack.
- Ittakesonly one fifth-columnist topassonsensitiveinformation.
- This man is atreacherousfifthcolumnist.
Disloyalty, betrayal & treason
- adulterous
- backstabber
- betrayal
- betrayer
- break ranksidiom
- chicane
- deserter
- desertion
- faithless
- faithlessly
- faithlessness
- false
- fifth column
- sellout
- stabsomeonein the backidiom
- tergiversation
- throwsomeoneto the lionsidiom
- throwsomeoneunder the busidiom
- treacherous
- treasonable
