specious

seemingly plausible but actually misleading

Roots

Other words with the spec / spic root

Specious means good-looking on the surface but misleading underneath.

The specious shortcut sounded clever until the practice test exposed it.

Specious is the dangerous side of appearance. It does not look obviously false; that is the trick. A perspicacious reader sees through what a specious argument shows on the surface.

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