strong personality

Noun

The qualities of self-confidence and assertiveness in a person.

Japanese Meaning

自己主張が強く、自信に満ちた性格 / 強い個性を持ち、決断力のある性格

Her strong personality helped her negotiate the deal with confidence.

彼女の自己主張が強く自信に満ちた性格が、その取引を自信を持って交渉する助けになった。

Sense（1）

The qualities of self-confidence and assertiveness in a person.

She is a successful leader because of her strong personality.

strong personalities

（ plural ）