noun, na-adjective
extremely insolent; outrageously audacious; reprehensible
A strong, emphatic yojijukugo used to condemn behavior as utterly lawless, shameless, or beyond the pale. Often found in formal or literary contexts.
彼の不埒千万な態度には、さすがの私も怒りを覚えた。
Even I was angered by his utterly insolent attitude.
その政治家の不埒千万な発言は、多くの批判を浴びた。
The politician's outrageously audacious remarks drew widespread criticism.
A yojijukugo combining 不埒 (lawless, insolent) with 千万 (extremely, myriad) to form an emphatic expression meaning 'utterly insolent' or 'extremely audacious'.