Plainness
The Century Dictionary and Cyclopedia
noun.
The state or quality of being plain
the GNU version of the Collaborative International Dictionary of English
noun.
The quality or state of being plain.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
The condition of being
plain
(in all senses)
noun.
The product or result of being plain
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the state of being unmixed with other material
noun.
clarity as a consequence of being perspicuous
noun.
an appearance that is not attractive or beautiful
noun.
the appearance of being plain and unpretentious