Emily Dickinson Lexicon

plain (-er), adj. [OFr < L. plān-us, flat.] (webplay: bright, children, discovered, grace, high, inequalities, luxuriously, man, obscure, plain words, road, seen, shortness, simple, speech, straight).

1. Common; unsophisticated; artless; ignorant; awkward; manifesting lack of experience in worldly matters.
2. Smooth; unbroken.
3. Unclouded; unconfused.
4. Unornamented; undecorated; unembellished; uninteresting, monotonous, ordinary.
5. Pure; solid; untinted by other colors.
6. Mere; bare.
7. Obvious; evident; clear; visible.
8. Honest; frank; undisguised.