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1. Having the ring of truth or plausibility but actually fallacious: a specious argument.
2. Deceptively appealing: "It is easy enough to give the old idea [of programmatic music] a specious air of modernity" (Aaron Copland).
[Middle English, attractive, from Latin speciōsus, from speciēs, appearance; see spek- in Indo-European roots.]
spe′ci·os′i·ty (-shē-ŏs′ĭ-tē), spe′cious·ness (-shəs-nĭs) n.
1. apparently correct or true, but actually wrong or false
2. deceptively attractive in appearance
[C14 (originally: fair): from Latin speciōsus plausible, from speciēs outward appearance, from specere to look at]
1. apparently true or right though lacking real merit; not genuine.
2. deceptively attractive.
3. Obs. pleasing to the eye.
[1350–1400; Middle English < Latin speciōsus fair, good-looking <speci(ēs) (see species)]
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|Adj.||1.||specious - plausible but false; "a specious claim"; "spurious inferences"|
false - not in accordance with the fact or reality or actuality; "gave false testimony under oath"; "false tales of bravery"
|2.||specious - based on pretense; deceptively pleasing; "the gilded and perfumed but inwardly rotten nobility"; "meretricious praise"; "a meretricious argument"|
insincere - lacking sincerity; "a charming but thoroughly insincere woman"; "their praise was extravagant and insincere"