"in secret" in German in secret insgeheim Detailed translations for "in secret" in secret in secret insgeheim{adverb} To this day he practices in secret the sins of Mohammed. Source: opensubtitles.org Corpus by OPUS Request review Bis heute praktiziert er insgeheim die Sünden Mohammeds... You've been working in secret with Dr. Swann. Source: opensubtitles.org Corpus by OPUS Request review Du hast insgeheim mit Dr. Swann gearbeitet. English synonyms for "in secret" in secret {r} on the Q.T. on the QT secretly