Source : Webster's Revised Unabridged Dictionary (1913)

Farfetched \Far"fetched`\, a.
   1. Brought from far, or from a remote place.

            Every remedy contained a multitude of farfetched and
            heterogeneous ingredients.            --Hawthorne.

   2. Studiously sought; not easily or naturally deduced or
      introduced; forced; strained.

Source : WordNet®

farfetched
     adj : highly imaginative but unlikely; "a farfetched excuse"; "an
           implausible explanation" [syn: {implausible}]