not on (adjective) out: not possible; gone
Sinonime: Benedict Arnold, Judas, apostate, back-stabber, betrayer, conspirator, deceiver, defector, deserter, double-crosser, fink, informer, quisling, rat, rebel, renegade, snake*, sneak*, snitch, spy, squealer, stool pigeon, tattletale, tergiversator, treasonist, two-timer, whistle-blower
Antonime: here,
in,
possible