say it: SPEE-shuhs
specious is an adjective meaning "plausible but false". It carries 2 recorded senses.
based on pretense; deceptively pleasing
“the gilded and perfumed but inwardly rotten nobility”
“meretricious praise”
“a meretricious argument”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for specious come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.