Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
captious is an adjective meaning "tending to find and call attention to faults". It carries one recorded sense.
tending to find and call attention to faults
“a captious pedant”
“an excessively demanding and faultfinding tutor”
Definitions, synonyms and semantic relations for captious come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.