Stunned (conditions)

* A stunned creature is incapacitated (see the condition), can’t move, and can speak only falteringly. * The creature automatically fails Strength and Dexterity saving throws. * Attack rolls against the creature have advantage. * A creature that is immune to being stunned is immune to being rattled.

Source: 5e Core — official document

* A stunned creature is incapacitated (see the condition), can’t move, and can speak only falteringly. * The creature automatically fails Strength and Dexterity saving throws. * Attack rolls against the creature have advantage.

Source: 5e Core — official document

While you have the Stunned condition, you experience the following effects. * Incapacitated. You have the Incapacitated condition. * Saving Throws Affected. You automatically fail Strength and Dexterity saving throws. * Attacks Affected. Attack rolls against you have Advantage.

Source: 5e Core — official document