PLAINSPOKEN
blunt, candid, forthright, frank, free-spoken, outspoken, plainspoken, point-blank, straight-from-the-shoulder
(adjective) 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”
plainspoken
(adjective) using simple and direct language; “a plainspoken country doctor”
Source: WordNet® 3.1
Etymology
Adjective
plainspoken (comparative more plainspoken, superlative most plainspoken)
Speaking plainly or simply.
Source: Wiktionary
Plain"-spo`ken, a.
Definition: Speaking with plain, unreserved sincerity; also, spoken
sincerely; as, plain-spoken words. Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition