say it: kahn-chee-EN-chuh-slee
conscientiously is an adverb meaning "with extreme conscientiousness". It carries one recorded sense.
with extreme conscientiousness
“he came religiously every morning at 8 o'clock”
Definitions, synonyms and semantic relations for conscientiously 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.