say it: PAHS-chuu-muh-slee
posthumously is an adverb meaning "after death". It carries one recorded sense.
after death
“these piano pieces were published posthumously”
“he was honored posthumously”
Definitions, synonyms and semantic relations for posthumously 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.