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Webster's Dictionary (1865)

Ŏb'so-lēte, a.

adjective

a. [Lat. obsoletus, p. p. of obsolescere; Sp. obsoleto. See supra.]

  1. No longer common; gone into disuse; disused; neglected; as, an obsolete word; an obsolete statute; — applied chiefly to words, writings, or observances.
  2. (Nat. Hist.) Not very distinct; obscure; rudimental.

Syn. — Ancient; antiquated; old-fashioned; antique; old; disused; neglected. See ANCIENT.