say it: deh-truh-MEN-tuhl
detrimental is an adjective meaning "(sometimes followed by `to') causing harm or injury". It carries one recorded sense.
(sometimes followed by `to') causing harm or injury
“damaging to career and reputation”
“the reporter's coverage resulted in prejudicial publicity for the defendant”
Definitions, synonyms and semantic relations for detrimental 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.