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

approachable \approach"able\, a.
   capable of being approached; accessible; as, approachable
   virtue.
   1913 webster

[2] : WordNet (r) 2.0

approachable
     adj 1: capable of being read with comprehension; "readily
            accessible to the nonprofessional reader"; "the tales
            seem more approachable than his more difficult novels"
            syn: accessible
     2: easy to meet or converse or do business with; "a friendly
        approachable person" ant: unapproachable
     3: easily approached; "a site approachable from a branch of the
        niger" syn: reachable
see also:
accessible unapproachable reachable 

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

57 moby thesaurus words for "approachable":
   accessible, attainable, available, bribable, buyable, candid,
   come-at-able, communicative, conversable, corrupt, corruptible,
   demonstrative, effusive, expansive, extroverted, findable, fixable,
   frank, free, free-speaking, free-spoken, free-tongued, getatable,
   gettable, gossipy, newsy, obtainable, on the pad, on the take,
   open, open to, outgoing, outspoken, penetrable, pervious,
   procurable, purchasable, reachable, securable, self-revealing,
   self-revelatory, sociable, talkative, to be had, unconstrained,
   unhampered, unrepressed, unreserved, unrestrained, unrestricted,
   unreticent, unsecretive, unshrinking, unsilent, unsuppressed,
   venal, within reach

Approachable >> A Words
Approachable, definition of term: Approachable
approachable_pag1.html