gentlemanlike (adjective) chivalrous: valiant
Sinonime: accuser, adviser, announcer, betrayer, blabbermouth, canary, crier, deep throat, double-crosser, herald, interviewer, journalist, messenger, newscaster/newsperson, notifier, preacher, propagandist, rat, reporter, sneak, source, stool pigeon, tattler, tattletale
Antonime: afraid,
cowardly,
fearful,
frightened,
humble, unchivalrous