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

The driver’s license becomes a key to unlocking opportunities to move from point A to point B, allowing young adults to embrace spontaneity and build lasting memories. —Selika Josiah Talbott, Forbes.com, 23 June 2025

This year’s party may have lacked last year’s spontaneity, but fans made up for it in enthusiasm, crowd size and sheer volume. —Ben Crandell, Sun Sentinel, 18 June 2025

This shared fiery element suggests a partnership full of excitement, spontaneity and a deep connection to living life with intensity and purpose. —Valerie Mesa, People.com, 12 June 2025

The starting positions for back row pieces are randomized while the pawns remain the same, allowing for a spontaneity that chess veterans sometimes find lacking in the classic variation. —Andrew Paul, Popular Science, 21 May 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