Particularity/pərˌtɪkjəˈlærəti/ Definition 1 of 3Pro Tip 1/2Character Uniqueness Use 'particularity' to describe what sets someone or something apart from others. Her particularity lies in her ability to solve problems quickly. Pro Tip 2/2Not Always Positive 'Particularity' can express negative qualities as well as positive ones. His particularity is his tendency to be overly critical.