This is the 8546th most frequent French word.
amère
Bitter.
Here, 'amère' is used as an adjective to describe the bitterness conveyed by her facial expression, which relates to feelings or emotions.
Elle a une expression amère sur son visage.
She has a bitter expression on her face.
In this sentence, 'amère' characterizes the taste of the medicine, showing its physical attribute as being unpleasantly sharp or sour.
Ce médicament a un goût amère.
This medicine has a bitter taste.
Here, 'amère' describes 'déception,' indicating an emotionally intense disappointment characterized by bitterness.