Synonyms for

Spontaneous

Verb / spɑ:ˈnteɪni:ʌs / Another word for spontaneous — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

happening or done in a natural, sudden way, without planning or force

Synonyms & similar words

adlib induced selfgenerated unwritten unplanned impulsive unintentional unrehearsed unforced automatic casual effortless unbidden voluntary instinctive natural spur-of-the-moment unstudied unthinking ad-lib extemporaneous impromptu off-the-cuff

Synonyms by register

Formal

unprompted involuntary automatic extemporaneous

Informal

off the cuff impromptu on the fly spur-of-the-moment

Literary

effervescent unbidden untutored

Antonyms

planned deliberate calculated premeditated arranged intentional contrived

Common collocations

  • spontaneous combustion
  • spontaneous generation
  • spontaneous applause
  • spontaneous decision
  • spontaneous outbreak
  • spontaneous smile
  • spontaneous reaction

Word family

noun spontaneity
adverb spontaneously

Usage note

Often used to describe actions or events that happen naturally and without prior planning. Can sometimes imply a lack of control or forethought, depending on context.

Example sentences

  1. The children's spontaneous laughter filled the room.
  2. She had a spontaneous urge to sing.
  3. The couple's spontaneous decision to get married surprised their families.
  4. The artist's brushstrokes were spontaneous and free.
  5. The comedian's jokes were all spontaneous and unrehearsed.

Quotes

  • "Spontaneity is the best kind of adventure." - Anonymous
  • "The most beautiful things are often the most spontaneous." - Anonymous
  • "I am not a spontaneous person when it comes to my career." - Taylor Swift

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