PLAIN-DE'ALING, adjective [plain and deal.] Dealing or communicating with frankness and sincerity; honest; open; speaking and acting without art; as a plain-dealing man. PLAIN-DE'ALING, noun A speaking or communicating with openness and sincerity; management without art, stratagem or disguise; sincerity.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI