English Reference
noun

simplicity

n.
US /sɪmˈpɫɪsəti/ UK /sɪmplˈɪsɪti/ sim·plic·i·ty UK spelling simplicities, simplicity's

  1. 01 B2 Upper Intermediate

    the quality of being easy to understand or do.

    the quality of being easy to understand, solve, or use; the absence of difficulty or complexity.

    Simple

    The simplicity of the instructions made it easy to build the desk in ten minutes.

    In context

    The software's success is largely due to the simplicity of its interface, which allows novice users to perform complex tasks without training.

    Usage

    Often used with the preposition 'of'.

    clarityeasestraightforwardness
  2. 02 B2 Upper Intermediate

    a style that is plain, natural, and not decorated.

    freedom from deceit, affectation, or artificiality; a plainness of style or ornament.

    Simple

    She chose a dress of elegant simplicity for the wedding.

    In context

    The architect was praised for the stark simplicity of the building, which relied on natural light rather than decorative flourishes.

    plainnessmodestyrestraint
    extravaganceornateness
  3. 03 C2 Proficiency Archaic

    a lack of intelligence or being too easy to trick.

    a state of being simple-minded or foolish; a lack of worldly wisdom.

    Simple

    In his simplicity, he believed every word the stranger told him.

    In context

    The protagonist's tragic downfall was rooted in his own simplicity, as he failed to perceive the political machinations surrounding him.

    Teacher's tip

    This sense is archaic; modern speakers prefer 'naivety' or 'gullibility' to describe this trait.

    naivetyfoolishness
    wisdomshrewdness

From the very first page, Etna's voice is somber and poetic in its simplicity.

NPR· 17 Aug 2026

The second movement’s clarinet chorale was played with touching softness and simplicity.

The Guardian· 11 Aug 2026

From Middle English simplicite, from Old French simplicite, from Latin simplicitās, from simplex (“simple”). See simple. Partially displaced native English onefoldness.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin simplicitās
Level B2 · Upper Intermediate
Frequency Frequent
Updated