What is another word for spontaneous?

Common synonyms for spontaneous include induced, unwritten, adlib, selfgenerated.

What is the opposite of spontaneous?

Antonyms of spontaneous include planned, deliberate, calculated, premeditated, arranged.

Synonyms for

Spontaneous

Adjective / 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

induced unwritten adlib selfgenerated 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.

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