specious

adjectives

plausible but false
"a specious claim"; "spurious inferences"
specious, spurious
is derived from
speciousness
based on pretense; deceptively pleasing
"the gilded and perfumed but inwardly rotten nobility"; "meretricious praise"; "a meretricious argument"
gilded, meretricious, specious
is derived from
speciousness