Princeton's WordNet

1. simplicity, simpleness(noun)

   the quality of being simple or uncompounded

   "the simplicity of a crystal"

2. simplicity, simpleness, simple mindedness(noun)

   a lack of penetration or subtlety

   "they took advantage of her simplicity"

3. simplicity, simmpleness(noun)

   absence of affectation or pretense

4. ease, easiness, simplicity, simpleness(noun)

   freedom from difficulty or hardship or effort

   "he rose through the ranks with apparent ease"; "they put it into containers for ease of transportation"; "the very easiness of the deed held her back"

5. chasteness, restraint, simplicity, simpleness(noun)

   lack of ornamentation

   "the room was simply decorated with great restraint"

Kernerman English Learner's Dictionary

1. simplicity(noun)ɪmˈplɪs ɪ ti

   the quality or fact of being simple

   the simplicity of the design; people searching for simplicity in their lives

Wiktionary

1. simplicity(Noun)

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

2. simplicity(Noun)

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

3. simplicity(Noun)

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

4. simplicity(Noun)

   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. simplicity(Noun)

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

6. simplicity(Noun)

   Weakness of intellect; silliness; folly.

7. simplicity(Noun)

   An act or instance of foolishness.

Origin: From simplicite, from simplicitas, from simplex; see simple.

Webster Dictionary

1. Simplicity(noun)

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

2. Simplicity(noun)

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

3. Simplicity(noun)

   artlessness of mind; freedom from cunning or duplicity; lack of acuteness and sagacity

4. Simplicity(noun)

   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. Simplicity(noun)

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

6. Simplicity(noun)

   weakness of intellect; silliness; folly

• eenvoudAfrikaans
• بَساطَهArabic
• простатаBulgarian
• simplicidadePortuguese (BR)
• jednoduchostCzech
• die Einfachheit, die EinfaltGerman
• simpelhed; enkelhedDanish
• απλότητα, λιτότητα, αφέλειαGreek
• sencillezSpanish
• lihtsus, lihtsameelsusEstonian
• سادگيFarsi
• yksinkertaisuusFinnish
• simplicitéFrench
• פַּשטוּתHebrew
• सरलता, आसानी, सादगीHindi
• jednostavnost, nevinostCroatian
• egyszerűségHungarian
• kesederhanaanIndonesian
• einfaldleikiIcelandic
• semplicitàItalian
• 単純さJapanese
• 단순Korean
• paprastumasLithuanian
• vienkāršībaLatvian
• kesederhanaanMalay
• eenvoudDutch
• enkelhetNorwegian
• prostota, naturalnośćPolish
• سادگيPersian
• ساده توب، اسانتيا،څرګندوالى، وضاحت، طبيعي توب، بې تكليفي: جهالت، بيړاتوبPashto
• simplicidadePortuguese
• sim­pli­­tateRomanian
• простота; простодушиеRussian
• jednoduchosťSlovak
• preproščinaSlovenian
• jednostavnostSerbian
• enkelhet, naturlighet, rättframhetSwedish
• ความเรียบง่ายThai
• saflık, basitlikTurkish
• 樸素，簡單，率真Chinese (Trad.)
• простота; простодушністьUkrainian
• سادگیUrdu
• sự đơn giảnVietnamese
• 简明，朴素，直率Chinese (Simp.)