simplicity

n. absence of complexity; plainness; sincerity, guilelessness; lack of sophistication; lack of intelligence

Simplicity is the property, condition, or quality of being simple or un-combined. It often denotes beauty, purity or clarity. Simple things are usually easier to explain and understand than complicated ones. Simplicity can mean freedom from hardship, effort or confusion. It may also refer to a simple living lifestyle.
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Noun
1. the quality of being simple or uncompounded; "the simplicity of a crystal"
(synonym) simpleness
(antonym) complexity, complexness
(hypernym) quality
2. a lack of penetration or subtlety; "they took advantage of her simplicity"
(synonym) simple mindedness
(hypernym) naivete, naivety, naiveness
3. absence of affectation or pretense
(hypernym) naturalness
4. freedom from difficulty or hardship or effort; "he rose through the ranks with apparent ease"; "they put it into containers for ease of transportation"
(synonym) ease, easiness
(hypernym) quality
(hyponym) effortlessness
(attribute) easy
5. lack of ornamentation; "the room was simply decorated with great restraint"
(synonym) chasteness, restraint
(hypernym) plainness

(n.)
Weakness of intellect; silliness; folly.
  

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

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

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

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

(n.)
Artlessness of mind; freedom from cunning or duplicity; lack of acuteness and sagacity.
  

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Agreeing on three articles of law.
Laying down simple and clear rules so that they will be observed by all concerned.