In a specious manner; fallaciously, erroneously.(adverb)
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Use "speciously" in a sentence
"He calls speciously by the mildest of names the birth of the soul that has come from elsewhere a living in a strange country."
"The American asks me what I do for a living, and I say, speciously, that I write about art, mostly younger artists."
"Lionel Tiger may know his ground-living apes, but their monkey-see/monkey-do he speciously and simplistically applies to the Facebook phenomenon "Zuckerberg: The World's Richest Primatologist," op-ed, Feb. 6."