Definition

1. Adjective:
   • Without prior warning or notification: Occurring or appearing without any advance notice or announcement being given.
   • Unexpected: Arriving or happening in a sudden or surprising manner because no one was informed beforehand.

Usage

The adjective "unannounced" is used to describe an event, visit, or action that happens without any prior warning or formal notice. It often carries a neutral or slightly negative connotation of surprise or unpreparedness. It typically follows a verb like "arrive," "appear," or "happen," or comes after a linking verb.

Examples

• The inspector made an unannounced visit to the factory to check safety standards.
• Her unannounced departure from the company left everyone confused.
• Guests who arrive unannounced may find us busy.
• The policy change was implemented unannounced, causing significant disruption.

Advanced Usage

• "To arrive unannounced": This is a very common collocation meaning to show up without telling anyone you are coming.
  • My old friend from college arrived unannounced at my doorstep yesterday.
• "An unannounced change/decision": Refers to a shift in plans or rules that was not communicated in advance.
  • The unannounced change in the meeting schedule created chaos.

Variants and Related Words

• Unannounced is the standard adjective form.
• Announced (adj.): The direct antonym, meaning made known publicly or formally in advance.
  • The long-announced merger finally took place.
• Unheralded (adj.): Similar to "unannounced," often used for events or people that appear without prior publicity or indication. (As seen in the reference context: "a totally unheralded telegram").
  • The team's success was unheralded at the start of the season.

Synonyms

• Unexpected: Not expected or regarded as likely to happen.
• Surprise: Denoting an unexpected or astonishing event.
• Without notice: Lacking advance notification.
• Impromptu: Done without being planned or rehearsed.

Antonyms

• Announced: Declared or made known in advance.
• Scheduled: Planned to happen at a certain time.
• Expected: Regarded as likely to happen; anticipated.
• Forewarned: Informed of a possible danger or problem beforehand.

Related Phrases and Idioms

• "Out of the blue": An idiom meaning suddenly and unexpectedly, similar in sense to an unannounced event.
  • The job offer came out of the blue.
• "Drop in" (phrasal verb): To visit someone informally and usually without notice.
  • Feel free to drop in anytime you're in the neighborhood. (This implies an unannounced visit is acceptable).

Adjective

1. without warning or announcement
   • they arrived unannounced
   • a totally unheralded telegram that his daughter...died last night- M.A.D.Howe