personality可数，有复数。复数形式是personalities。personality作名词意思是“生而为人；人格，人品，个性；人物；名人。”确实在中国的观点是性格属于不可数名词。但是可以理解为性格的种类，是可数名词，有复数的。

personality 造句

1. Their son is a real personality.

他们的儿子真是有个性。

2. His wife has a strong personality.

他妻子的个性很强。

3. She has such a kind, friendly personality.

她有着如此友善的性格。

4. His engaging personality made him popular with his peers.

他迷人的个性使他很受同龄人欢迎。

5. Everything you do or say is reflective of your personality.

你的一言一行都体现你的个性。