Modifiers matching season:

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

Simple categories matching longer:

• term,
• unit,
• period,
• season,
• instrument,
• duration,
• line,
• time,
• interval,