Modifiers matching holiday:

• irregular,
• religious,
• official,
• federal,
• major,
• busy,
• important,
• individual,
• basic,
• over,
• special,
• regional,
• jewish,
• key,
• biblical,
• fixed,
• ecclesiastical,
• christian,
• american,
• traditional,
• big,
• sporting,
• cultural,
• romantic,
• beautiful,
• civic,
• catholic,
• personal,
• joyous,
• popular,
• strange,
• national,
• seasonal,
• annual,
• active,
• festive,
• common,
• floral,
• liturgical,
• desirable,
• secular,
• civil,
• local,
• historical,
• memorable,

Simple categories matching civil:

• establishment,
• obligation,
• structure,
• equipment,
• society,
• mission,
• disorder,
• process,
• matter,
• document,
• servant,
• action,
• institution,
• measure,
• works,
• disturbance,
• character,
• relief,
• building,
• technology,
• engineering,
• crime,
• aid,
• facility,
• state,
• party,
• opposition,
• service,
• violence,
• job,
• work,
• practice,
• construction,
• strife,
• case,
• industry,
• delegation,
• area,
• room,
• lawsuit,
• sector,
• initiative,
• officer,
• war,
• remedy,
• papers,
• freedom,
• penalty,
• body,
• project,
• incident,
• infrastructure,
• aviation,
• pleading,
• task,
• judgment,
• offense,
• suit,
• association,
• force,
• abuse,
• issue,
• law,
• employee,
• activity,
• engagement,
• monument,
• architecture,
• holiday,
• sum,
• resistance,
• record,
• religion,
• system,
• airport,
• conflict,
• proceeding,
• material,
• accident,
• sanction,
• organization,
• use,
• group,
• vehicle,
• craft,
• situation,
• authorities,
• endeavour,
• ceremony,
• right,
• defiance,
• official,
• improvement,
• court,
• order,
• marriage,
• status,
• authority,
• litigation,
• organisation,
• dispute,
• occupation,
• maintenance,
• agency,
• procedure,
• jurisdiction,
• event,
• laws,
• responsibility,