The quality or state of being simple or uncomplicated in appearance or style. The plainness of the room was refreshing after the cluttered decor of the previous house.
The quality of being clear and easy to understand. The plainness of his speech made it easy for everyone to grasp the complex topic.
The quality of lacking embellishment or ornamentation. Her dress was admired for its plainness, which highlighted her natural beauty.
The quality of being straightforward or candid. His plainness in addressing the issues won him the respect of his colleagues.
The quality of being physically unattractive or lacking in distinctive beauty. Despite the plainness of his features, his warm smile drew people to him.