Webster's Revised Unabridged Dictionary · 1913

Individuality

Individuality , noun

[Compare French individualité.]

1.
The quality or state of being individual or constituting an individual; separate or distinct existence; oneness; unity. — Arbuthnot
They possess separate individualities. — H. Spencer
2.
The character or property appropriate or peculiar to an individual; that quality which distinguishes one person or thing from another; the sum of characteristic traits; distinctive character; as, he is a person of marked individuality.
3.
A habit of thinking and acting in one's own distinctive manner and as one believes appropriate, not being heavily influenced by the opinions of others; -- of people.