Of a statement, fact, etc.: not accompanied by or overlain with remarks or comments; expressed in plain unadorned language. Cf. sense A. 17.

Of language, manner of expression, a narrative, etc.: lacking elegance or polish; (usually used positively) free from over-elaboration or…

Of a thing, an animal, etc. Undignified, low. Of literary style, etc.: lacking in elevation or adornment; unambitious (not always with…

Of poetry, music, or some other art form: characteristic of the country or its inhabitants; having a rustic theme; pastoral, bucolic. Also: simple…

Unadorned.

Not ornate; unadorned, plain, simple.

Destitute or defective in various other respects. Without literary or artistic effect; bald, meagre, unadorned.

Of language (or the speaker). Plainspoken, outspoken (often in a bad sense); unreserved, not mincing matters.

Bare or destitute of ornament and grace; unadorned, meagrely simple. of literary style.

figurative. Plain, homely. Obsolete.

Rustic; homely; simple.

figurative. Of statements, etc.: Not embellished or rendered specious; plain, direct.

(un-, prefix1 affix 2.)

Unlaboured; not highly finished- unfinished.

In reference to style or taste, literary or artistic: Shunning redundance or unessential ornament; not florid or exuberant; sober, restrained…

English regional (East Anglian). Easily understood, plain. Also as adv. Obsolete.

Of words: short, simple. Also of language: †simple, plain (obsolete).

In transferred or figurative applications.

Not elaborate; not having much labour expended on it; simple or slight in workmanship.

figurative. Esp. of speech or writing: not excessively augmented, embellished, or interspersed with something. Cf. lard, v. 4.

Pure in artistic or literary style; without meretricious ornament; chastened, subdued.

figurative. Plain, simple.

Of an artistic work, etc.: characterized by simplicity and lack of adornment; reduced to the most basic elements of style, form, or content. Of an…

Of style: unadorned, bare, simple.