adverse

What does "adverse" mean?
Adverse describes something that is harmful, unfavorable, or working against your goals. Think of it as a force pushing in the opposite direction of where you want to go, like a strong wind blowing against a ship, making progress difficult or preventing success entirely. This word is almost exclusively used in formal or technical contexts, such as medical reports, legal contracts, or professional assessments. It is most commonly paired with nouns like "effect," "conditions," or "outcome," signifying a negative impact that is often external or unavoidable.
"adverse" in conversation
Discussing a flight delay
We have to delay takeoff due to adverse weather conditions.
We have to delay takeoff due to adverse weather conditions.
Is it going to be a long wait?
Is it going to be a long wait?
Commonly used to describe weather that prevents normal operations.
Clinical trial update
Did the patient report any adverse reactions to the new medication?
Did the patient report any adverse reactions to the new medication?
None so far, everything looks stable.
None so far, everything looks stable.
In medicine, 'adverse reaction' is a standard term for side effects.
"adverse" in a sentence
The project was cancelled due to adverse circumstances.
The project was cancelled due to adverse circumstances.
Some people have an adverse reaction to certain types of pollen.
Some people have an adverse reaction to certain types of pollen.
Despite the adverse economic climate, the startup managed to double its revenue.
Despite the adverse economic climate, the startup managed to double its revenue.