Webster's Revised Unabridged Dictionary · 1913

Simple

Simple , adjective

[French, from Latin simplus, or simplex, gen. simplicis. The first part of the Latin words is probably akin to English same, and the sense, one, one and the same; compare Latin semel once, singuli one to each, single. Cg. Single, a., Same, a., and for the last part of the word compare Double, Complex.]

1.
Single; not complex; not infolded or entangled; uncombined; not compounded; not blended with something else; not complicated; as, a simple substance; a simple idea; a simple sound; a simple machine; a simple problem; simple tasks.
2.
Plain; unadorned; as, simple dress.
Simple truth. — Spenser
His simple story. — Burns
3.
Mere; not other than; being only.
A medicine... whose simple touch Is powerful to araise King Pepin. — Shakespeare
4.
Not given to artifice, stratagem, or duplicity; undesigning; sincere; true.
Full many fine men go upon my score, as simple as I stand here, and I trust them. — Marston
Must thou trust Tradition's simple tongue? — Byron
To be simple is to be great. — Emerson
5.
Artless in manner; unaffected; unconstrained; natural; inartificial;; straightforward.
In simple manners all the secret lies. — Young
6.
Direct; clear; intelligible; not abstruse or enigmatical; as, a simple statement; simple language.
7.
Weak in intellect; not wise or sagacious; of but moderate understanding or attainments; hence, foolish; silly.
You have simple wits. — Shakespeare
The simple believeth every word; but the prudent man looketh well to his going. — Bible (KJV) - Proverb xiv. 15
8.
Not luxurious; without much variety; plain; as, a simple diet; a simple way of living.
Thy simple fare and all thy plain delights. — Cowper
9.
Humble; lowly; undistinguished.
A simple husbandman in garments gray. — Spenser
Clergy and laity, male and female, gentle and simple made the fuel of the same fire. — Fuller
10.
(BOt.) Without subdivisions; entire; as, a simple stem; a simple leaf.
11.
(Chemistry) Not capable of being decomposed into anything more simple or ultimate by any means at present known; elementary; thus, atoms are regarded as simple bodies. Compare Ultimate, a.

A simple body is one that has not as yet been decomposed. There are indications that many of our simple elements are still compound bodies, though their actual decomposition into anything simpler may never be accomplished.

12.
(Mineralogy) Homogenous.
13.
(Zoology) Consisting of a single individual or zooid; as, a simple ascidian; -- opposed to compound.
I am a simple woman, much too weak To oppose your cunning. — Shakespeare
He is the companion of the silliest people in their most silly pleasure; he is ready for every impertinent entertainment and diversion. — Law
Collocations (6)
Simple contract (Law) , any contract, whether verbal or written, which is not of record or under seal. — J. W. Smith
Simple equation (Algebra) , an equation containing but one unknown quantity, and that quantity only in the first degree.
Simple eye (Zoology) , an eye having a single lens; -- opposed to compound eye.
Simple interest , See under Interest.
Simple larceny (Law) , See under Larceny.
Simple obligation (Rom. Law) , an obligation which does not depend for its execution upon any event provided for by the parties, or is not to become void on the happening of any such event. — Burrill

Simple , noun

[F. See Simple, a.]

1.
Something not mixed or compounded.
Compounded of many simples. — Shakespeare
2.
(Medicine) A medicinal plant; -- so called because each vegetable was supposed to possess its particular virtue, and therefore to constitute a simple remedy.
What virtue is in this remedy lies in the naked simple itself as it comes over from the Indies. — Sir W. Temple
3.
(a) (Weaving) A drawloom.
(b)
(Weaving) A part of the apparatus for raising the heddles of a drawloom.
4.
(Roman Catholic Church) A feast which is not a double or a semidouble.

Simple , intransitive verb

To gather simples, or medicinal plants.
As simpling on the flowery hills she [Circe] strayed. — Garth