Find Synonyms

spontaneously Synonyms

Another word for spontaneously

Choosing another word for spontaneously depends on context, so the 11 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adverb (Context 1)

In a natural, uninhibited, and unplanned manner; on the spur of the moment without prior preparation or rehearsal.

Usage Example

"The entire audience impromptu stood up and applauded at the end of the symphony."

Strongest
impromptu
impulsively
Strong
unprompted
extemporaneously
instinctively
voluntarily
freely

• adverb (Context 2)

As a result of internal processes or natural conditions, without any apparent external cause, stimulus, or human intervention.

Usage Example

"Certain unstable isotopes decay naturally over time, emitting radiation in the process."

Strongest
naturally
Strong
automatically
independently
autonomously

Opposites of spontaneously

The opposite of spontaneously shifts depending on context. Common opposites include:

deliberately
artificially
on purpose
premeditatedly
intentionally
systematically
methodically
synthetically
See all opposites of spontaneously

• Nearby Words

sponsorship
spontaneity
spontaneous
spontaneously
spontaneousness
spoof
spoofing

Cite this Entry

Wordmom. (2026). Synonyms for Spontaneously. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/spontaneously
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