conspicuous

This word describes a high degree of visibility that often borders on being intrusive or obvious. It suggests a quality of being impossible to ignore, whether due to size, color, or an unusual behavior that draws the eye immediately. While it can be neutral, it frequently carries a subtle hint of awkwardness or inappropriateness, such as when someone is conspicuously absent from a meeting they were expected to attend. It differs from simply being visible by implying a certain level of prominence or striking contrast with the surroundings.