Adjektiv

untertägig

underground, subterranean, subsurface

Der untertägige Bergbau ist gefährlich.

Underground mining is dangerous.

Die Arbeiter sind im untertägigen Einsatz.

The workers are on underground duty.

((untertägige)) Arbeit underground work Underground work is physically very demanding.

unterirdisch

Comes from 'unter' (under) + 'Tag' (day) + '-ig' (adjective suffix). The literal meaning is 'under the day', as in, away from the light of day.

Imagine working 'under the day' ('unter Tage'), deep in a mine where daylight can't reach. 'Untertägig' describes this condition.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.