"Casual" refers to a relaxed and informal style or approach. It can describe clothing, behavior, or social interactions that are not strict or formal. For example, wearing jeans and a t-shirt is considered casual attire, suitable for everyday activities or informal gatherings. In social contexts, casual interactions often involve friendly conversations without rigid etiquette. People may engage in casual outings, such as meeting friends for coffee or attending a barbecue. This informal atmosphere encourages comfort and ease, allowing individuals to express themselves more freely.