disreputable
dis-rep-u-ta-ble
adjective
Having a bad reputation; not respected or trustworthy, often due to immoral behaviour.
"He was known for his disreputable business dealings."
Thesaurus
Synonyms: discredited, sordid, notorious, squalid, damaged, seedy, ill-famed, discreditable, sleazy, infamous, seamy, louche
Antonyms: reputable