不ふ届とどき千せん万ばん

Meanings

very rude; outrageous; extremely insolent

Strongly negative term for behavior that is shockingly rude, insolent, or morally outrageous. Often used in formal or written contexts to express severe disapproval.

彼かれの不ふ届とどき千せん万ばんな態たい度どには言こと葉ばもない。
I am speechless at his outrageously rude attitude.
そんな不ふ届とどき千せん万ばんな行こう為いは許ゆるされない。
Such an extremely insolent act is unforgivable.

Kanji

不negative, non-, bad
届deliver, reach, arrive
千thousand
万ten thousand, 10,000

Related words

不ふ届とどき
不届き alone means 'rudeness' or 'impropriety'. Adding 千万 intensifies it to 'extremely rude' or 'outrageous'.
無ぶ礼れい
無礼 is a more common word for 'rudeness' or 'impoliteness', while 不届き千万 is stronger and more formal, implying moral outrage.

Built from

不ふ届とどき+千せん万ばん

Written forms

不ふ届とどき千せん万ばん
Standard kanji spelling. 不届き (rudeness) + 千万 (extremely) forms a strong condemnation.
不ふ届とどき千せん万ばん
Variant spelling omitting the okurigana き. Less common but recognized.

Etymology

Compound of 不届き (rudeness, impropriety) and 千万 (extremely, myriad). The suffix 千万 intensifies the preceding word, creating a strong expression of condemnation.