Modifiers matching season:

• busy,
• liturgical,
• defined,
• agricultural,
• favorite,
• quiet,
• dry,
• special,
• wet,
• breeding,
• current,
• cold,
• festive,
• major,
• off,
• cool,
• traditional,
• upcoming,
• joyous,
• outdoor,
• christian,
• behavioral,
• intense,
• critical,
• joyful,
• longer,
• climatic,
• weather,
• important,

Simple categories matching joyous:

• celebration,
• event,
• season,
• occasion,
• holiday,
• doings,
• ritual,
• times,
• ceremony,