Spontaneously
/spɒnˈteɪnɪəsli/
Synonyms
- automatically
- instinctively
- naturally
- impulsively
- unplanned
Slang Meanings
Off the cuff
His off-the-cuff remarks were totally spontaneous and unfiltered.
On a whim
We went to the beach on a whim, it was a spontaneous decision.