undecently

adverb2

1. •
   (no longer used) Unsuitably; improperly.

   • Philosophie hath done me the pleasure to judge, that so honorable an action, had been undecently [translating indecemment] placed in any other life, than in Catoes[…]. — 1603
2. •
   (no longer used) Scandalously; indecently.