1. Pertaining to Laconia or its inhabitants; Lacedæmonian or Spartan.
Much Greek mythology is laconic in nature, relating tales of Helen of Troy.
2. Expressing much in few words.
I love you is a laconic phrase.
Synonyms: breviloquent, brief, brusque, compact, compeniary, compendius, concise, crisp, curt, pithy, poetic, sentious, short, short and sweet, succinct, terse.