Simplicity \Sim*plic"i*ty\, n. [F. simplicit['e], L. simplicitas. See Simple.]

1. The quality or state of being simple, unmixed, or uncompounded; as, the simplicity of metals or of earths.

2. The quality or state of being not complex, or of consisting of few parts; as, the simplicity of a machine.

3. Artlessness of mind; freedom from cunning or duplicity; lack of acuteness and sagacity.

Marquis Dorset, a man, for his harmless simplicity neither misliked nor much regarded. --Hayward.

In wit a man; simplicity a child. --Pope.

4. Freedom from artificial ornament, pretentious style, or luxury; plainness; as, simplicity of dress, of style, or of language; simplicity of diet; simplicity of life.

5. Freedom from subtlety or abstruseness; clearness; as, the simplicity of a doctrine; the simplicity of an explanation or a demonstration.

6. Weakness of intellect; silliness; folly.

How long, ye simple ones, will ye love simplicity? and the scorners delight in their scorning? --Prov. i. 22.

Source: Webster's Revised Unabridged Dictionary (1913)