unexpectedbenefit
nounUK /ˌʌnɪkˈspɛktɪd ˈbɛnɪfɪt/
US /ˌʌnɪkˈspɛktɪd ˈbɛnəfɪt/
A good thing that happens when you did not plan it.
Finding a dollar in my old coat was an unexpected benefit.
RELATED WORDS
OTHER MEANINGS
2. A helpful result of a choice that was not the main reason for making it.
Walking to school gave me an unexpected benefit: I made new friends.
3. A good side effect of a medicine or action.
The new medicine had an unexpected benefit of helping him sleep better.
4. A reward you get without trying to earn it.
Helping clean the park came with the unexpected benefit of free ice cream.