This is the 4979th most frequent French word.
stressant
Stressful.
Here, 'stressant' is used as an adjective to describe the nature of the work (masculine singular), emphasizing the idea that it causes stress to the person doing it.
Ce travail est très stressant.
This work is very stressful.
In this case, 'stressant' is applied as an adjective (feminine singular) to describe the evolving or current nature of the situation, conveying the idea that it induces stress.
La situation devient vraiment stressante.
The situation is becoming really stressful.
Here, 'stressant' serves as an adjective (masculine plural) to specify the stressful nature of the exams from the perspective of the person experiencing it.