Definition of posthumous adjective from the Oxford Advanced American Dictionary

 

posthumous

 adjective
adjective
NAmE//ˈpɑstʃəməs//
 
[usually before noun]
 
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happening, done, published, etc. after a person has died a posthumous award for bravery A posthumous collection of her work was just published.
posthumously
 
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adverb
See the Oxford Advanced Learner's Dictionary entry: posthumous