[1] : The Collaborative International Dictionary of English v.0.48

passable \pass"able\, a. cf. f. passable.
   1. capable of being passed, traveled, navigated, traversed,
      penetrated, or the like; as, the roads are not passable;
      the stream is passablein boats.
      1913 webster

            his body's a passable carcass if it be not hurt; it
            is a throughfare for steel.           --shak.
      1913 webster

   2. capable of being freely circulated or disseminated;
      acceptable; generally receivable; current.
      1913 webster

            with men as with false money -- one piece is more or
            less passable than another.           --l'estrange.
      1913 webster

            could they have made this slander passable.
                                                  --collier.
      1913 webster

   3. such as may be accepted or allowed to pass without serious
      objection; adequate; acceptable; tolerable; admissable;
      moderate; mediocre.
      1913 webster +pjc

            my version will appear a passable beauty when the
            original muse is absent.              --dryden.
      1913 webster

[2] : WordNet (r) 2.0

passable
     adj 1: able to be passed or traversed or crossed; "the road is
            passable" ant: impassable
     2: about average; acceptable; "more than adequate as a
        secretary" syn: adequate, fair to middling
     3: neither good nor bad; "an indifferent performance"; "a
        gifted painter but an indifferent actor"; "her work at the
        office is passable"; "a so-so golfer"; "feeling only
        so-so"; "prepared a tolerable dinner"; "a tolerable
        working knowledge of french" syn: indifferent, so-sop,
         tolerable
see also:
impassable adequate fair to middling indifferent so-sop tolerable 

[3] : Moby Thesaurus II by Grady Ward, 1.0

62 moby thesaurus words for "passable":
   ok, acceptable, accessible, adequate, admissible, agreeable,
   all right, allowable, alright, attainable, average,
   better than nothing, betwixt and between, decent, dull, fair,
   fair to middling, fairish, good enough, goodish, indifferent,
   insipid, lackluster, mediocre, medium, middling, moderate, modest,
   namby-pamby, navigable, negotiable, not amiss, not bad,
   not half bad, not so bad, of a kind, of a sort, of sorts, okay,
   open, presentable, pretty good, reachable, respectable,
   satisfactory, so so, so-so, sufficient, tedious, tenable, tidy,
   tolerable, traversable, unblocked, unexceptionable, unexceptional,
   unobjectionable, unobstructed, vapid, viable, wishy-washy,
   workmanlike

Passable >> P Words
Passable, definition of term: Passable
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