This is the 10028th most frequent Catalan word.
obsessionar
To obsess.
The word 'obsessionar' here means to become obsessed with something, focusing too much attention or concern on it.
No cal obsessionar-se amb el detall.
It's not necessary to obsess about the detail.
In this sentence, 'obsessionar' is used reflexively to indicate someone becoming increasingly focused in an unhealthy or overwhelming way on an idea.
Està obsessionant-se amb la idea de la perfecció.
She is becoming obsessed with the idea of perfection.
The term 'obsessionar' is applied transitively to express causing others to become overly fixated or concerned about something.