"Spontaneous moments" refers to unexpected or unplanned events or actions that happen naturally and without prior thought or preparation. Full definition
After all, the world affords us, its citizens, limited opportunities for shared, spontaneous moments of joy and triumph. (sbnation.com)
And because it's a C - Class, it takes you anywhere in luxury and style, while taking life's spontaneous moments in stride. (mercedes-benz.ca)
The dedicated camera button is really handy and you can go from a standing start to snapping a shot in two seconds, which makes it ideal for capturing spontaneous moments. (digitaltrends.com)