1
absurd;nonsensical;preposterous
荒唐無稽と皆に言われた彼のビジネスプランだけど、今となっては我々の不明を恥じるしかないのかね。
Every one of us who ridiculed his business plan as a bunch of hokum should be embarrassed we did.
Other forms
荒唐無けい 【こうとうむけい】 (search-only kanji form)