This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The characteristic of being brief.

n. The quality of being brief; brevity; conciseness in discourse or writing.

n. The state or quality of being brief; shortness; brevity; conciseness in discourse or writing.

n. the attribute of being brief or fleeting

n. the temporal property of being very short

"Here is a summary of the Sunday Round 17 games, please excuse the "briefness" of the resumes as I have just got in."

duration    length    shortness   

brevity   

laconism    abracadabra    geomancy    alas!    chiromancy    appositeness    overpricing    terseness    time-lag    sententiousness