This is the 3652nd most frequent Portuguese word.
superficial
Lacking depth or thoroughness; shallow.
In this instance, 'superficial' highlights the limited or basic nature of knowledge.
Ele tem um conhecimento superficial sobre o assunto, não sendo um especialista.
He has superficial knowledge about the topic, not being an expert.
In this sentence, 'superficial' describes something minor or not deep, particularly a scratch that doesn't penetrate deeply.
Este arranhão no carro é superficial.
This scratch on the car is superficial.
Here, 'superficial' refers to something lacking depth or thoroughness, specifically an analysis that is cursory or shallow.