Use 'conviviality' when describing a lively atmosphere among people in parties or celebrations. The conviviality of the wedding reception made everyone feel welcome.
Pro Tip 2/3
Positive Emotion
Suggests a cheerful mood where people are enjoying each other's company. Family reunions are often filled with conviviality.
Pro Tip 3/3
Shared Enjoyment
'Conviviality' implies mutual enjoyment and participation in an event, not just solitary fun. The dinner was a great success, marked by the conviviality of the guests.