Modifiers matching season:

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

Simple categories matching joyous:

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