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 of spontaneity

• 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

Working at the Kunstgewerbeschule under educational reformer Franz Cžek, Wiener Werkstätte women also designed toys designed to tap into childlike spontaneity. — Emily Watlington, ARTnews.com, 24 Aug. 2026

The crew reconvened at Electric Lady Studios in New York before making one final trip to Joshua Tree, recording live and largely in the same room to favor spontaneity over polish. — Spin Staff, SPIN, 18 Aug. 2026

Travel and tourism represent almost 10% of the global economy, and the world of international travel is increasingly becoming an exercise in spontaneity. — William Jones, USA Today, 17 Aug. 2026

The crowds ignored the best efforts of the protest leaders to act as disciplinary conductors and reveled in their own playful spontaneity, their slogans and posters heaping colorful profanities on the prime minister. — Asim Ali, Time, 1 Aug. 2026

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