au courant (adjective) au courant: in the current
Sinonime: Benedict Arnold, Judas,
apostate, back-stabber, backslider, betrayer, conspirator, deceiver, defector, deserter, double-crosser, fink,
hypocrite, impostor, informer, intriguer,
miscreant, quisling,
rebel,
renegade,
snake*,
sneak*, snitch, snitcher, spy, squealer, stool pigeon, tattletale, traducer, treasonist, turncoat, two-timer, whistle-blower,
wolf*
Antonime: loyalist