1. Distinctive features or qualities that set something or someone apart from others; individual or special attributes
Each person has unique characteristics that make them who they are.
Cada pessoa tem características únicas que a tornam quem é.
2. Specific traits or properties that distinguish a product, species, or concept from similar ones
The unique characteristics of this smartphone include its innovative camera system.
As características únicas deste smartphone incluem seu sistema de câmera inovador.