One that is successful:
Exultation or rejoicing over victory or success:
A pleasure trip or holiday outdoors or away from home
Picnic is defined as a meal eaten outdoors, or an occasion where people come together to eat outside.
Find another word for field-day. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for field-day, like: success, holiday, triumph, victory, outing and picnic.