Pronunciation

/spəʊnˈteɪniəs/

Definitions

• Adjective: Characterized by occurring naturally, without prior planning or conscious effort; occurring or done instinctively or abruptly. For example: “Her laughter was spontaneous.”
• Adverb: In a spontaneous manner; without prior arrangement or preparation. For example: “He answered the question spontaneously.”

Phrases

• “Spontaneous reaction” refers to an immediate response without thought.
• “Spontaneous combustion” is a chemical reaction that ignites without an external spark.
• “Spontaneous applause” is unexpected cheering or clapping.

Example Sentences

• Adjective: “The children’s performances were full of spontaneous energy.”
• Adverb: “She decided to go on a trip spontaneously, without telling anyone.”
• “His answer came out spontaneously, surprising everyone.”

Synonyms

• Impulsive
• Natural
• Unplanned
• Instinctive
• Unconscripted
• Off-the-cuff -猝不及防的
• 随意的

Antonyms

• Planned
• Premeditated
• Organized
• Routine
• Mechanical
• Predictable