Adverse means antagonistic or contrary to one's interests. Here are some sentences.
An excessive use of alcohol may have an adverse affect on a persons health.
I am adverse to war.
I am adverse to answering this question.
There were adverse effects of temperature of people. This is a sentence containing the word adverse.
Drivers were warned of the adverse camber on the bend by the road signage.
I think I'm having an adverse reaction to work!
contrary, contradictory, diametric, counter, adverse,obverse, contrasted.
I am facing a lot of adverse and unwarranted criticism.
The prefix "ad-" in the word "adverse" means "against" or "opposing."
Speculative
I am averse to hiking during adverse weather.
verse. It's like the root word.