What does "specious" mean?

Specious: Apparently right; superficially fair, just, or correct, but not so in reality; appearing well at first view; plausible; as, specious reasoning; a specious argument. Misled for a moment by the specious names of religion, liberty, and property. Macaulay. In consequence of their greater command of specious expression. J. Morley. See Plausible. -- Spe"xious*ly, adv. -- Spe"cious*ness, n.