What context can I use each word in?
Learn when and how to use these words with these examples!
spontaneously
Example
She spontaneously burst into song when she heard her favorite tune. [spontaneously: adverb]
Example
The children started dancing spontaneously when they heard the music. [spontaneously: adverb]
impromptu
Example
He gave an impromptu speech at the wedding reception. [impromptu: adjective]
Example
The band played an impromptu concert in the park. [impromptu: adjective]
Good things to know
Which word is more common?
Impromptu is more commonly used than spontaneously in everyday language, especially in formal contexts such as speeches or performances. Spontaneously is less common and is typically used in more casual or informal contexts.
What’s the difference in the tone of formality between spontaneously and impromptu?
Impromptu is often used in more formal contexts, while spontaneously is more casual and informal. However, both words can be used in various formality levels depending on the context and tone of the sentence.
