spontaneity

noun

spon·​ta·​ne·​i·​ty ˌspän-tə-ˈnē-ə-tē  -ˈnā- 

1

: the quality or state of being spontaneous

2

: voluntary or undetermined action or movement

also : its source

Synonyms

• abandon
• naturalness
• abandonment
• enthusiasm

Examples of spontaneity in a Sentence

the spontaneity of their behavior

the couple sacrificed some of the spontaneity in their lives when they both got nine-to-five jobs

Recent Examples on the Web

Task begins by setting up the parallels between Tom and Robbie, two flawed men trying to keep their heads above the water of their own miseries, cutting back and forth between their routines to emphasize their similar ideologies and spontaneities. —Roxana Hadadi, Vulture, 5 Sep. 2025

There is a sense of spontaneity. —David Lyman, Cincinnati Enquirer, 4 Sep. 2025

The resulting feeling of methodical spontaneity carries over into Ohs’s images. —Richard Brody, New Yorker, 4 Sep. 2025

Intimate, personal, open to spontaneity. —Vogue Runway, Vogue, 4 Sep. 2025

Word History

Etymology

borrowed from New Latin spontāneitāt-, spontāneitās, from Late Latin spontāneus "voluntary, unconstrained, spontaneous" + Latin -itāt-, -itās -ity

First Known Use

1651, in the meaning defined at sense 1

Rhymes for spontaneity

• contemporaneity
• heterogeneity
• inhomogeneity
• deity
• homogeneity
• simultaneity

Kids Definition

spontaneity

noun

spon·​ta·​ne·​ity

ˌspänt-ən-ˈē-ət-ē,

ˌspänt-ᵊn-,

-ˈā-ət-

: the quality or state of being spontaneous