diff --git a/src/controls/Units.qml b/src/controls/Units.qml
--- a/src/controls/Units.qml
+++ b/src/controls/Units.qml
@@ -74,6 +74,12 @@
      */
     property real devicePixelRatio: Math.max(1, ((fontMetrics.font.pixelSize*0.75) / fontMetrics.font.pointSize))
 
+    /**
+     * units.veryLongDuration should be used for specialty animations that benefit
+     * from being even longer than longDuration.
+     */
+    property int veryLongDuration: 500
+
     /**
      * units.longDuration should be used for longer, screen-covering animations, for opening and
      * closing of dialogs and other "not too small" animations
diff --git a/src/controls/plugins.qmltypes b/src/controls/plugins.qmltypes
--- a/src/controls/plugins.qmltypes
+++ b/src/controls/plugins.qmltypes
@@ -2083,6 +2083,7 @@
         Property { name: "devicePixelRatio"; type: "double" }
         Property { name: "longDuration"; type: "int" }
         Property { name: "shortDuration"; type: "int" }
+        Property { name: "veryLongDuration"; type: "int" }
         Property { name: "toolTipDelay"; type: "int" }
         Property { name: "wheelScrollLines"; type: "int"; isReadonly: true }
         Property { name: "fontMetrics"; type: "QVariant" }
diff --git a/src/styles/org.kde.desktop/Units.qml b/src/styles/org.kde.desktop/Units.qml
--- a/src/styles/org.kde.desktop/Units.qml
+++ b/src/styles/org.kde.desktop/Units.qml
@@ -70,6 +70,12 @@
      */
     property real devicePixelRatio: Math.max(1, (fontMetrics.font.pixelSize / fontMetrics.font.pointSize))
 
+    /**
+     * units.veryLongDuration should be used for specialty animations that benefit
+     * from being even longer than longDuration.
+     */
+    property int veryLongDuration: 500
+
     /**
      * units.longDuration should be used for longer, screen-covering animations, for opening and
      * closing of dialogs and other "not too small" animations