say it: puhngk-TIL-ee-uhs
punctilious is an adjective meaning "marked by precise accordance with details". It carries one recorded sense.
marked by precise accordance with details
“meticulous research”
“punctilious in his attention to rules of etiquette”
Definitions, synonyms and semantic relations for punctilious 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.