1. [adj]  characterized by disconcerting 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"
2. [adj]  using simple and direct language; "a plainspoken country doctor"

PLAINSPOKEN is a 11 letter word that starts with P.