So far Meaning, Definition & Usage

  1. adverb used in negative statement to describe a situation that has existed up to this point or up to the present time
    til now; up to now; heretofore; hitherto; thus far; until now; as yet; yet.
    • So far he hasn't called
    • the sun isn't up yet
  2. adverb to the degree or extent that
    to that extent; insofar; in so far; to that degree.
    • insofar as it can be ascertained, the horse lung is comparable to that of man
    • so far as it is reasonably practical he should practice restraint
  3. adverb used after a superlative
    yet.
    • this is the best so far
    • the largest drug bust yet

WordNet

Definitions
  1. to that point or extent; in that particular. "The song was moral, and so far was right." Cowper.

Webster 1913