SPONTANEOUS: Synonyms and Related Words. What is Another Word for SPONTANEOUS?

Need another word that means the same as “spontaneous”? Find 33 synonyms and 30 related words for “spontaneous” in this overview.

The synonyms of “Spontaneous” are: self-generated, ad-lib, unwritten, unforced, voluntary, unconstrained, unprompted, unbidden, unsolicited, unplanned, unpremeditated, unrehearsed, impulsive, impetuous, unstudied, impromptu, spur-of-the-moment, extempore, extemporaneous, natural, uninhibited, relaxed, unselfconscious, unaffected, easy, free and easy, reflex, automatic, involuntary, unthinking, unconscious, instinctive, instinctual

Spontaneous as an Adjective

Definitions of "Spontaneous" as an adjective

According to the Oxford Dictionary of English, “spontaneous” as an adjective can have the following definitions:

• Having an open, natural, and uninhibited manner.
• Said or done without having been planned or written in advance.
• Happening or arising without apparent external cause.
• (of movement or activity in an organism) instinctive or involuntary.
• Performed or occurring as a result of a sudden impulse or inclination and without premeditation or external stimulus.
• (of a plant) growing naturally and without being tended or cultivated.
• (of a process or event) occurring without apparent external cause.

Synonyms of "Spontaneous" as an adjective (33 Words)

ad-lib	Said or done without having been planned or written in advance.
automatic	(especially of a legal sanction) given or imposed as a necessary and inevitable result of a fixed rule or particular set of circumstances. A budget deficit that caused automatic spending cuts.
easy	Casual and unrestrained in sexual behavior. Soft light that was easy on the eyes.
extemporaneous	Spoken or done without preparation. An extemporaneous speech.
extempore	Spoken or done without preparation. An extempore speech.
free and easy	Completely wanting or lacking.
impetuous	Characterized by undue haste and lack of thought or deliberation. She might live to rue this impetuous decision.
impromptu	Done without being planned, organized, or rehearsed. An impromptu press conference.
impulsive	Having the power of driving or impelling. The approaching waves contain an impulsive component.
instinctive	Unthinking; prompted by (or as if by) instinct. An instinctive distaste for conflict.
instinctual	Relating to or denoting an innate, typically fixed pattern of behaviour; based on instinct. An instinctual survival response.
involuntary	Not subject to the control of the will- John F.Kennedy. It becoming a hero was involuntary They sank my boat.
natural	Relating to earthly human or physical nature as distinct from the spiritual or supernatural realm. The bassoon plays G natural instead of A flat.
reflex	(of an action) performed without conscious thought as an automatic response to a stimulus. A reflex knee jerk.
relaxed	Without strain or anxiety. Gave the impression of being quite relaxed.
self-generated	Originating from the self.
spur-of-the-moment	In response to an unforeseen need.
unaffected	Free of artificiality; sincere and genuine. The walks are suitable only for people who are unaffected by vertigo.
unbidden	Without having been commanded or invited. Unbidden tears came to his eyes.
unconscious	Not conscious; lacking awareness and the capacity for sensory perception as if asleep or dead. He would wipe back his hair in an unconscious gesture of annoyance.
unconstrained	Free from constraint. The dog was unconstrained.
unforced	Not compelled or constrained. An unforced cheerfulness.
uninhibited	Expressing one’s feelings or thoughts unselfconsciously and without restraint. Uninhibited exuberance.
unplanned	Not done with purpose or intent. An unplanned economy.
unpremeditated	(of an act, remark, or state) not thought out or planned beforehand. Asked an unpremeditated question.
unprompted	Said, done, or acting without being encouraged or assisted. An unprompted apology.
unrehearsed	Not practised before a performance. Spontaneous and unrehearsed music.
unselfconscious	Not self-conscious. His behaviour was natural and unselfconscious.
unsolicited	Not requested or sought. Unsolicited junk mail.
unstudied	Lacking knowledge gained by study often in a particular field. Is unstudied in Latin as he is in may other matters.
unthinking	Not exhibiting or characterized by careful thought. She was at pains to correct unthinking prejudices.
unwritten	Not recorded in writing. The unwritten rules of social life.
voluntary	(of a conveyance or disposition) made without return in money or other consideration. Voluntary motions.

Usage Examples of "Spontaneous" as an adjective

• The spontaneous mechanical activity of circular smooth muscle.
• Spontaneous miscarriages.
• Spontaneous laughter.
• A spontaneous abortion.
• The audience broke into spontaneous applause.
• Spontaneous combustion.
• A spontaneous display of affection.

Associations of "Spontaneous" (30 Words)

accidental	(in Aristotelian thought) relating to or denoting properties which are not essential to a thing’s nature. Accidental poisoning.
adventitious	Coming from outside; not native. They had to decide whether his misconduct was adventitious or the result of a flaw in his character.
compose	Produce a literary work. The first sentence is so hard to compose.
discretionary	Having or using the ability to act or decide according to your own discretion or judgment. Discretionary funds.
extemporaneous	With little or no preparation or forethought. An extemporaneous piano recital.
extempore	Without preparation. An extempore speech.
extemporize	Perform without preparation. He extemporized a speech at the wedding.
fitful	Intermittently stopping and starting. Business was fitful.
freshness	The quality of being pleasantly new or different. The commentary should display freshness of insight.
immediate	Immediately before or after as in a chain of cause and effect. The immediate result.
impromptu	Without being planned, organized, or rehearsed. An impromptu speech.
improvisation	An unplanned expedient. Improvisation is a performer s greatest creative act.
improvise	Perform without preparation. After the hurricane destroyed our house we had to improvise for weeks.
improvised	Done or made using whatever is available. An improvised short speech.
instant	Instant coffee. An instant need.
instinctive	Relating to or prompted by instinct; done without conscious thought. An instinctive distaste for conflict.
intention	A thing intended; an aim or plan. His intentions are entirely honorable.
makeshift	Acting as an interim and temporary measure. The rock served as a makeshift hammer.
naturalness	The quality of innocent naivete. She demonstrates an ease and naturalness that many actors try hard to project.
offhand	Casually thoughtless or inconsiderate. Trying to sound offhanded and reassuring.
opportunist	Opportunistic. Most burglaries are committed by casual opportunists.
reaction	A force exerted in opposition to an applied force. The law of action and reaction.
spontaneity	The quality of being spontaneous and coming from natural feelings without constraint. The spontaneity of his laughter.
spontaneously	In a spontaneous manner. A surprising number of early pregnancies spontaneously abort.
stopgap	Something contrived to meet an urgent need or emergency. Transplants are only a stopgap until more sophisticated alternatives can work.
uninhibited	Not inhibited or restrained. A lively and uninhibited girl.
unreserved	Frank and open. Unreserved grandstand seats.
unrestrained	Marked by uncontrolled excitement or emotion. Unrestrained laughter.
unrestricted	Not restricted or exclusive. I had unrestricted access.
voluntary	An organ solo played before, during, or after a church service. Voluntary social workers.