On a more negative side the number 1 can represent a bit of a bullish and overbearing character trait, and headstrong and stubborn personality. Opinionated, self-centered, domineering, overly critical, aggressive and intimidating are other, less positive traits associated with this number.
On a more positive side, the number 1 brings in a more competitive, driven, and highly motivated energy. This energy is more directed and controlled ... it is the ambitious and pioneering force. The 1 also represents responsibility and loyalty, intelligence and wit, insightfulness, courage, innovation, confidence, independence, and unconventional individualism. Those with 1s in their chart are more likely to try new avenues, take risks, and venture out into unknown territories.