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 …

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

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

1. occurring, produced, or performed through natural processes without external influence: spontaneous movement. 2. arising from an unforced personal impulse; voluntary; …

Dec 14, 2025 · spontaneous (comparative more spontaneous, superlative most spontaneous) He made a spontaneous offer of help. Arising from a momentary impulse. Controlled and directed …

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 …

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 …

From Longman Dictionary of Contemporary English spon‧ta‧ne‧ous /spɒnˈteɪniəs $ spɑːn-/ adjective 1 something that is spontaneous has not been planned or organized, but happens by …

Something spontaneous happens when you're least expecting it. Spontaneous things are natural or instinctive, and they happen without warning.