Condition

Source: D&D 5.2 SRD Rules Glossary

A condition is a temporary game state. The definition of a condition says how it affects its recipient, and various rules define how to end a condition. This glossary defines these conditions:

• Blinded
• Charmed
• Deafened
• Exhaustion
• Frightened
• Grappled
• Incapacitated
• Invisible
• Paralyzed
• Petrified
• Poisoned
• Prone
• Restrained
• Stunned
• Unconscious

A condition doesn't stack with itself; a recipient either has a condition or doesn't. The Exhaustion condition is an exception to that rule.