spontaneous
/spɒnˈteɪ.ni.əs/adjective★Intermediate
formal
Happening or done without premeditation or external influence; natural and unplanned.
She made a spontaneous decision to travel abroad.
Her spontaneous reaction to the news surprised everyone.
💡
Often used to describe actions, decisions, or events that occur suddenly and without prior thought.
Collocations
spontaneous decisionA choice made without prior planning.spontaneous reactionAn immediate, unplanned response.spontaneous combustionA rare phenomenon where a material ignites without an external heat source.
Synonyms
Antonyms
Related Phrases
spontaneous combustionphrase
A rare event where a material ignites without an external heat source.
💡Pro Tip
Common Usage
Use 'spontaneous' to describe actions that are natural and unplanned, but not necessarily impulsive or reckless.
⚡Gold Rule
Avoid Misuse
Do not use 'spontaneous' to describe events that are merely unexpected or coincidental.
📖Word Origin
From Latin 'spontaneus', meaning 'of one's own accord', derived from 'sponte' (of one's own will).
📝Usage Notes
Can describe both positive (creative, joyful) and negative (reckless, uncontrolled) actions depending on context.
Word Breakdown
spont-
Of one's own will or accord
root-aneous
Characterized by
suffixEnglish Dictionary