[syn: blunt, candid, forthright, frank, free-spoken, outspoken, plainspoken, point-blank, straight-from-the-shoulder]
The Collaborative International Dictionary of English v.0.48:
Outspoken \Out*spo"ken\, a.
   Speaking, or spoken, freely, openly, candidly, or boldly; as,
   an outspoken man; an outspoken rebuke. -- Out*spo"ken*ness,
   n.
   [1913 Webster]
WordNet (r) 3.0 (2006):
outspoken
    adj 1: given to expressing yourself freely or insistently;
           "outspoken in their opposition to segregation"; "a vocal
           assembly" [syn: outspoken, vocal]
    2: characterized by directness in manner or speech; without
       subtlety or evasion; "blunt talking and straight shooting";
       "a blunt New England farmer"; "I gave them my candid
       opinion"; "forthright criticism"; "a forthright approach to
       the problem"; "tell me what you think--and you may just as
       well be frank"; "it is possible to be outspoken without being
       rude"; "plainspoken and to the point"; "a point-blank
       accusation" [syn: blunt, candid, forthright, frank,
       free-spoken, outspoken, plainspoken, point-blank,
       straight-from-the-shoulder]
Moby Thesaurus II by Grady Ward, 1.0:
105 Moby Thesaurus words for "outspoken":
   accessible, approachable, articulate, artless, bluff, blunt, bold,
   born yesterday, brash, broad, brusque, candid, childlike,
   communicative, confiding, conversable, crude, demonstrative,
   direct, downright, effusive, eloquent, expansive, explicit,
   extroverted, forthright, frank, frankhearted, free, free hand,
   free-acting, free-going, free-moving, free-speaking, free-spoken,
   free-tongued, freehanded, genuine, gossipy, guileless,
   heart-to-heart, ingenu, ingenuous, innocent, loud-speaking,
   loud-spoken, naive, newsy, open, openhearted, outgoing, plain,
   plain-speaking, plain-spoken, plainspoken, point-blank, round,
   self-revealing, self-revelatory, simple, simplehearted,
   simpleminded, sincere, single-hearted, single-minded, sociable,
   soft-speaking, soft-spoken, speaking, specific, straight,
   straight-out, straightforward, strident, tactless, talkative,
   talking, transparent, true-speaking, trustful, trusting,
   unambiguous, unceremonious, unchecked, unconstrained, undiplomatic,
   unequivocal, unguarded, unhampered, uninhibited, unrepressed,
   unreserved, unrestrained, unrestricted, unreticent, unsecretive,
   unshrinking, unsilent, unsophisticated, unsubtle, unsuppressed,
   unsuspicious, unwary, vocal, well-spoken