1. Without elevations or depressions; flat; level; smooth; even. See Plane.
"The crooked shall be made straight, and the rough places plain." -- Isa. xl. 4.
2. Open; clear; unencumbered; equal; fair.
"Our troops beat an army in plain fight." -- Felton.
3. Not intricate or difficult; evident; manifest; obvious; clear; unmistakable. "'T is a plain case." Shak.
4. (a) Void of extraneous beauty or ornament; without conspicious embellishment; not rich; simple. (b) Not highly cultivated; unsophisticated; free from show or pretension; simple; natural; homely; common. "Plain yet pious Christians." Hammond. "The plain people." A. Lincoln. (c) Free from affectation or disguise; candid; sincere; artless; honest; frank. "An honest mind, and plain." Shak. (d) Not luxurious; not highly seasoned; simple; as, plain food. (e) Without beauty; not handsome; homely; as, a plain woman. (f) Not variegated, dyed, or figured; as, plain muslin. (g) Not much varied by modulations; as, a plain tune.
open battle; pitched battle. [Obs.] Chaucer.
(Mus.) Same as Plain song, below.
(Naut.), a chart laid down on Mercator's projection.
(a) One who practices plain dealing. (b) A simpleton. [Obs.] Shak.
See under Dealing.
(Join.), molding of which the surfaces are plain figures.
sewing of seams by simple and common stitches, in distinct from fancy work, embroidery, etc.; -- distinguished also from designing and fitting garments.
(a) The Gregorian chant, or canto fermo; the prescribed melody of the Roman Catholic service, sung in unison, in tones of equal length, and rarely extending beyond the compass of an octave. (b) A simple melody.
plainness or bluntness of speech.
Syn. -- Level; flat; smooth; open; artless; unaffected; undisguised; frank; sincere; honest; candid; ingenuous; unembellished; downright; blunt; clear; simple; distinct; manifest; obvious; apparent. See Manifest.