SPONTANEOUS definition: 1. happening or done in a natural, often sudden way, without any planning or without being forced…. Learn more.

spontaneous, impulsive, instinctive, automatic, mechanical mean acting or activated without deliberation. spontaneous implies lack of prompting and connotes naturalness.

What does spontaneous mean? Spontaneous means natural and unplanned. When you describe an action or event as spontaneous, it means it happened naturally, without having been planned, as in …

Spontaneous things happen all of a sudden, on the spur of the moment, without being planned. Spontaneous can also refer to things that happen without outside influence.

Spontaneous acts are not planned or arranged, but are done because someone suddenly wants to do them. Their spontaneous outbursts of song were accompanied by lively music. I joined in the …

Define spontaneous. spontaneous synonyms, spontaneous pronunciation, spontaneous translation, English dictionary definition of spontaneous. adj. 1. Happening or arising without apparent external …

Definition of spontaneous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Aug 27, 2025 · Spontaneous is an adjective used to describe actions, responses, or phenomena that happen suddenly, impulsively, or without pre-planning. Think of it as the quick, natural reaction to a …

SPONTANEOUS meaning: 1 : done or said in a natural and often sudden way and without a lot of thought or planning; 2 : doing things that have not been planned but that seem enjoyable and worth …

resulting from a natural impulse or tendency: spontaneous applause during the performance. (of a person) acting upon sudden impulses: She's very spontaneous: she'll come right up and give you a …