Obsolete /(?)/

Ob·so·lete

Obsolete

a.
  1. No longer in use; gone into disuse; disused; neglected; as, an obsolete word; an obsolete statute; -- applied chiefly to words, writings, or observances.
  2. Not very distinct; obscure; rudimental; imperfectly developed; abortive. (Biol.)

Obsolete

v. i.
  1. To become obsolete; to go out of use. [R.]