资料来源 : pyDict

现存的,未毁的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Extant \Ex"tant\, a. [L. extans, -antis, or exstans, -antis, p.
   pr. of extare, exstare, to stand out or forth; ex out + stare
   to stand: cf. F. extant. See {Stand}.]
   1. Standing out or above any surface; protruded.

            That part of the teeth which is extant above the
            gums.                                 --Ray.

            A body partly immersed in a fluid and partly extant.
                                                  --Bentley.

   2. Still existing; not destroyed or lost; outstanding.

            Writings that were extant at that time. --Sir M.
                                                  Hale.

            The extant portraits of this great man. --I. Taylor.

   3. Publicly known; conspicuous. [Obs.] --B. Jonson.

资料来源 : WordNet®

extant
     adj : still in existence; not extinct or destroyed or lost;
           "extant manuscripts"; "specimens of graphic art found
           among extant barbaric folk"- Edward Clodd [ant: {extinct}]