Webster’s Revised Unabridged Dictionary · 1913
Laconic
La·con′ic, La·con′ic·al, a. [L. Laconicus Laconian, Gr. Λακωνικός, fr. Λάκων a Laconian, Lacedæmonian, or Spartan: cf. F. laconique.] 1. Expressing much in few words, after the manner of the Laconians or Spartans; brief and pithy; brusque; epigrammatic. In this sense laconic is the usual form.
I grow laconic even beyond laconicism; for sometimes I return only yes, or no, to questionary or petitionary epistles of half a yard long. Pope.
His sense was strong and his style laconic. Welwood.
2. Laconian; characteristic of, or like, the Spartans; hence, stern or severe; cruel; unflinching.
His head had now felt the razor, his back the rod; all that laconical discipline pleased him well. Bp. Hall.
Syn. — Short; brief; concise; succinct; sententious; pointed; pithy. — Laconic, Concise. Concise means without irrelevant or superfluous matter; it is the opposite of diffuse. Laconic means concise with the additional quality of pithiness, sometimes of brusqueness.
La·con′ic, n. Laconism. [Obs.] Addison.