As a verb jeopardize
is (us) to put in jeopardy, to threaten.
As an adjective detrimental is
causing damage or harm.
* jeopardise (British)
(US) To put in jeopardy, to threaten.
- After having an affair with a junior, her chances of promotion were seriously jeopardized .
Causing damage or harm.
- Smoking tobacco can be detrimental to your health.
* (causing damage or harm) harmful, injurious; see also
* (causing damage or harm) beneficial