Modifiers matching season:

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

Simple categories matching joyful:

• celebration,
• moment,
• event,
• times,
• season,
• occasion,