Definition

1. Adjective:
   • Not open; closed: Describes something that is shut, sealed, or not accessible for entry or use. It emphasizes the state of being closed.

Usage Examples

• Adjective:
  • The unopen door was a barrier to the secret room.
  • She stared at the unopen package, wondering what was inside.
  • The meeting was held behind unopen doors, away from the public.

Advanced Usage

• "Remain unopen": To stay closed over a period of time.
  • Despite the holiday, the store remained unopen.
• "Left deliberately unopen": Emphasizes a conscious choice to keep something closed.
  • The controversial file was left deliberately unopen for decades.

Variants and Related Words

• Unopened (adj): This is a more common variant, specifically meaning not having been opened (e.g., a sealed letter, an unused product). While "unopen" describes a state, "unopened" often implies it has never been opened.
  • He kept the letter unopened on his desk.
• Closed (adj): The most common and direct synonym.
• Shut (adj): Another common synonym, often used interchangeably with "closed."

Synonyms

• Closed
• Shut
• Sealed
• Fastened
• Locked (implies a mechanism is engaged)

Antonyms

• Open
• Ajar
• Accessible
• Unlocked

Notes on Usage

• "Unopen" vs. "Unopened": "Unopen" is a less frequent word, primarily used in more formal or literary contexts to describe the simple state of not being open. "Unopened" is far more common in everyday language and carries the specific nuance that something has not yet been opened since it was sealed or packaged. In many contexts, "closed" is the preferred and most natural choice.
• Formality: The adjective "unopen" can sound slightly formal or archaic.

Adjective

1. not open
   • the door slammed shut