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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
spontaneous
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word "spontaneous" is indeed correct and usable in written English.
It is an adjective used to describe something that happens or is done suddenly and without any planning or preparation. Example sentence: The group's gathering was entirely spontaneous, with no one having any idea of what was to become of the night.
✓ Grammatically correct
News & Media
Formal & Business
Science
Alternative expressions(20)
etched in my memory
foremost in one's thoughts
a primary concern
primary importance
vivid in my memory
clear in my mind
autonomous
seared into my memory
front of mind
forever in my thoughts
imprinted on my memory
impulsive
burned into my brain
treasured memory
imprinted on my brain
front of kids
indelibly imprinted on my mind
forms of mind
I remember it well
I will always remember
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
"Even at 18, a mentally voracious young woman cannot live entirely upon scenery," she wrote, adding that she would have been in danger of "dying of spontaneous combustion" had she not had her diary to write and an interesting curate in a nearby village.
News & Media
While these designs would have kept the Lauren faithful happy – and caused spontaneous applause from the front row – it was the earlier looks that were more interesting, and mixed day and evening to modern effect.
News & Media
Even in high summer you can decide where you're staying on the day, which means that you can be spontaneous.
News & Media
In his first mass as pope in the Sistine Chapel on Thursday, he had given an unprepared homily, and many of the remarks he made to the cardinals on Friday were also spontaneous.
News & Media
Thanks to my son's determination to never sleep by himself, the last fortnight has been an endless heavy-limbed fever dream of faraway stares and spontaneous unconsciousness.
News & Media
The second restricted the right of spontaneous assembly anywhere near parliament.
News & Media
The fascination he holds is that this aura appears to be both natural and spontaneous.
News & Media
The dressing down he got from Leanne Wood for seeking to scapegoat immigrants suffering with HIV for soaking up the NHS budget generated one of the few spontaneous rounds of applause of the night.
News & Media
Is it really in the interests of the UVF and UDA leadership's to allow a spontaneous upsurge in violence from its grassroots that could in a worst-case scenario unravel everything they sought to achieve since the 1994 ceasefires?
News & Media
But media reports will inevitably focus on one thing, namely the spontaneous occupation of and protest in Tory HQ at 30 Millbank Tower.
News & Media
Many media commentators, some London-based, some local, who spend little time on the ground in places like the Lower Newtownards Road or Short Strand, bought into the line that this latest conflagration was the result of spontaneous working class loyalist anger.
News & Media
Expert writing Tips
Best practice
When describing events or actions, use "spontaneous" to emphasize their unplanned and natural occurrence. This adds a sense of authenticity and immediacy to your writing.
Common error
Avoid using "spontaneous" to describe actions that are clearly planned or predictable. This can create confusion and weaken your message. Instead, reserve "spontaneous" for genuinely unplanned occurrences.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The word "spontaneous" functions primarily as an adjective, modifying nouns to describe actions, events, or behaviors that arise from a sudden impulse or without prior planning. According to Ludwig AI, this word follows standard grammar rules.
Frequent in
News & Media
69%
Formal & Business
14%
Science
17%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "spontaneous" is a versatile adjective used to describe actions and events that occur without planning or premeditation. According to Ludwig AI, the word follows standard grammar rules and is suitable for use in written English. It's commonly found in News & Media, as well as in Formal & Business contexts. When using "spontaneous", ensure that you are accurately conveying the absence of prior intent to maintain clarity and impact. Consider alternatives like "unplanned" or "impromptu" to add nuance to your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
unplanned
Focuses on the lack of prior arrangement or intention.
impromptu
Highlights the sudden and unprepared nature of an event or action.
extemporaneous
Emphasizes performance or creation without preparation, especially in speech.
unpremeditated
Indicates the absence of forethought or malice in an action.
impulsive
Focuses on acting on sudden urges or desires without considering the consequences.
automatic
Highlights actions that occur without conscious thought or effort.
self-generated
Emphasizes that something originates from within without external influence.
self-acting
Highlights the characteristic of being able to act by itself.
ad-libbed
Highlights an action that is said or performed without any prior preparation.
off-the-cuff
Emphasizes informality and lack of preparation, particularly in speech or remarks.
FAQs
How to use "spontaneous" in a sentence?
Use "spontaneous" to describe actions or events that happen suddenly and without planning. For example, "The crowd erupted in "spontaneous applause" after the performance."
What can I say instead of "spontaneous"?
You can use alternatives like "unplanned", "impromptu", or "extemporaneous" depending on the context.
Which is correct, "spontaneous" or "instantaneous"?
"Spontaneous" refers to something that happens without planning, while "instantaneous" refers to something that happens immediately. They are not interchangeable.
What's the difference between "spontaneous" and "natural"?
"Spontaneous" implies a lack of planning or premeditation, while "natural" suggests something is in accordance with nature or inherent qualities. Something can be natural without being "spontaneous", and vice versa.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested