Definition
Plainness refers to the quality of being ordinary or lacking in ornamentation or special features. It suggests a lack of striking beauty or anything that particularly stands out. It's a neutral term, neither inherently positive nor negative, simply indicating an absence of extravagance. Think of it as the opposite of flamboyance or intricacy. Plainness can apply to appearance, style, or even mannerisms. It implies simplicity and a lack of artifice.