Dictionary.net

unmistakably; "the answer is obviously wrong"; "she was in bed and evidently in great pain"; "he was manifestly too important to leave off the guest list"; "it is all patently nonsense"; "she has apparently been living here for some time"; "I thought he owned the property, but apparently not"; "You are plainly wrong"; (`plain' is often used informally for `plainly' as in"he is plain stubborn")

express complaints, discontent, displeasure, or unhappiness; "My mother complains all day"; "She has a lot to kick about"

lacking in physical beauty or proportion; "a homely child"; "several of the buildings were downright homely"; "a plain girl with a freckled face"

a basic knitting stitch

lacking stylistic embellishment; "a literal description"; "wrote good but plain prose"; "a plain unadorned account of the coronation"; "a forthright unembellished style"

lacking embellishment or ornamentation; "a plain hair style"; "unembellished white walls"; "functional architecture featuring stark unornamented concrete"

free from any effort to soften to disguise; "the plain and unvarnished truth"; "the unvarnished candor of old people and children"

comprehensible to the general public; "written for the popular press in plain nontechnical language"

express complaints, discontent, displeasure, or unhappiness; "My mother complains all day"; "She has a lot to kick about"

lacking in physical beauty or proportion; "a homely child"; "several of the buildings were downright homely"; "a plain girl with a freckled face"

a basic knitting stitch

lacking stylistic embellishment; "a literal description"; "wrote good but plain prose"; "a plain unadorned account of the coronation"; "a forthright unembellished style"

lacking embellishment or ornamentation; "a plain hair style"; "unembellished white walls"; "functional architecture featuring stark unornamented concrete"

free from any effort to soften to disguise; "the plain and unvarnished truth"; "the unvarnished candor of old people and children"

comprehensible to the general public; "written for the popular press in plain nontechnical language"

not elaborate or elaborated; simple; "plain food"; "stuck to the plain facts"; "a plain blue suit"; "a plain rectangular brick building"

To lament; to bewail; to complain.

To lament; to mourn over; as, to plain a loss.

Without elevations or depressions; flat; level; smooth; even. See Plane.

Open; clear; unencumbered; equal; fair.

Not intricate or difficult; evident; manifest; obvious; clear; unmistakable.

Void of extraneous beauty or ornament; without conspicious embellishment; not rich; simple.

Not highly cultivated; unsophisticated; free from show or pretension; simple; natural; homely; common.

Free from affectation or disguise; candid; sincere; artless; honest; frank.

Not luxurious; not highly seasoned; simple; as, plain food.

Without beauty; not handsome; homely; as, a plain woman.

Not variegated, dyed, or figured; as, plain muslin.

Not much varied by modulations; as, a plain tune.

In a plain manner; plainly.

Level land; usually, an open field or a broad stretch of land with an even surface, or a surface little varied by inequalities; as, the plain of Jordan; the American plains, or prairies.

A field of battle.

To plane or level; to make plain or even on the surface.

To make plain or manifest; to explain.

To lament; to bewail; to complain.

To lament; to mourn over; as, to plain a loss.

Without elevations or depressions; flat; level; smooth; even. See Plane.

Open; clear; unencumbered; equal; fair.

Not intricate or difficult; evident; manifest; obvious; clear; unmistakable.

Void of extraneous beauty or ornament; without conspicious embellishment; not rich; simple.

Not highly cultivated; unsophisticated; free from show or pretension; simple; natural; homely; common.

Free from affectation or disguise; candid; sincere; artless; honest; frank.

Not luxurious; not highly seasoned; simple; as, plain food.

Without beauty; not handsome; homely; as, a plain woman.

Not variegated, dyed, or figured; as, plain muslin.

Not much varied by modulations; as, a plain tune.

In a plain manner; plainly.

Level land; usually, an open field or a broad stretch of land with an even surface, or a surface little varied by inequalities; as, the plain of Jordan; the American plains, or prairies.

A field of battle.

To plane or level; to make plain or even on the surface.

To make plain or manifest; to explain.

Clearly.

Level; flat; even; smooth; clear; evident; as, in plain sight; easily understood; as, plain talk; unlearned; unpolished; simple in manners; as, a plain man; not luxurious; as, plain living; without ornament; as, plain furniture; without beauty; homely; as, a plain face.

Level land; any flat expanse.

Plainly.

Plainness.

Clearly.

Plainly.

Plainness.

Flat; smooth; easy; readily understood.

Lowly; unlearned; unadorned; unpretending; simple.

Lacking personal beauty.

Plainly.

Plainness.

Even: flat: level: smooth: simple: homely: artless: sincere: evident: mere: not colored or figured.

Plain level land: any flat expanse: an open field.

Honestly: distinctly.

A more or less smooth and level area.

Level land.

Level; simple; homely; clear; mere; not figured or gay.

Smooth; level: open; void of ornament; artless; simple; unaffected; undisguised; sincere; clear; easily seen or discovered; not difficult; not rich.

Not obscurely; artlessly.

Level land or open field.

Without ornament or embellishment; homely; artless; frank; sincere; candid; easily understood; not difficult; clear; not luxurious, as in food; smooth, level, or flat.

Not obscurely; distinctly.

Level land; a flat expanse-extensive plains in Asia are called steppes, in Africa, deserts, in S. Amer., pampas and llanos, in N. Amer., prairies and savannahs.

adv. In a plain manner; not obscurely;—distinctly; articulately;—simply; sincerely.

n. Level land; usually an open field with an even surface, or one little varied by inequalities;—a field of battle.