Definition

Adverb 1. For a long time; in great detail; thoroughly: Used to describe speaking, writing, or discussing something extensively and with full coverage of details. 2. Finally; after a long time: Used to indicate that something happens after a considerable delay or period.

Usage

The phrase "at length" is used to modify verbs, particularly those related to communication (e.g., talk, discuss, write, explain) or to indicate the eventual occurrence of an action. It often appears at the end of a sentence or clause.

Examples

• In great detail:

  • The professor spoke at length about the causes of the French Revolution.
  • The report discusses the environmental impacts at length.
  • We debated the proposal at length before reaching a decision.

• Finally; after a long time:

  • After many delays, the train arrived at length.
  • At length, she found the courage to speak her mind.

Advanced Usage

• The phrase can be used in formal writing and speech to add emphasis to the thoroughness of a discussion or the duration before an event.
• When meaning "in detail," it is often used with prepositions like "about" or "on" to specify the topic (e.g., talk at length a subject, write at length an issue).

Variants and Related Words

• Lengthily (adverb): In a long and detailed manner. (e.g., He explained the process lengthily.)
• Lengthy (adjective): Of considerable or unusual length, especially in time; often implying tediousness. (e.g., a lengthy speech, a lengthy process).

Synonyms

• In detail
• Extensively
• Thoroughly
• Exhaustively
• Finally
• Eventually

Antonyms

• Briefly
• Concisely
• Succinctly
• Immediately
• Promptly

Related Phrases

• Go into detail: To explain or describe something with many specifics. (e.g., She went into detail about her research.)
• At last: Finally, after a long wait. (This is a closer synonym for the "finally" sense of "at length.")

Adverb

1. in a lengthy or prolix manner
   • the argument went on lengthily
   • she talked at length about the problem