This is the 4873rd most frequent Portuguese word.
frágil
Fragile; easily broken, damaged, or delicate.
The word 'frágil' is used here as an adjective to describe the delicate and breakable quality of the vase.
O vaso é muito frágil, então manuseie com cuidado.
The vase is very fragile, so handle it with care.
In this sentence, 'frágil' refers to a delicate or sensitive emotional condition.
A situação emocional dele está frágil depois dos eventos recentes.
His emotional state is fragile after the recent events.
Here, 'frágil' metaphorically refers to the weak or tentative nature of the relationship.